Interactive multiple-choice quiz: الوحدة الثانية - ريفيل

Find the percent of change. Identify it as a percent of increase or decrease: A music video website received 5,000 comments on a new song they released. The next day, the artist performed the song on television and an additional 1,500 comments were made on the website. What was the percent of increase?

The Keatings have several bird feeders in their yard. They started with a 10.5-pound of birdseed. After 2 months, 12 ounces remained. What is the percent of change in the amount of birdseed after two months? Round your answer to the nearest tenth of a percent if necessary.

Find the total cost to the nearest cent: $24 shirt; 6% tax.

Jen purchased the items shown in the table. In the city she lives in, the sales tax rate is 7.15%. In another city, the sales tax rate is 6.35%. How much more is she spending if she purchases the items in the city where she lives? Round to the nearest cent.

Keri is making doll clothes for a holiday craft show. The wholesale cost of the materials for one outfit is 9.38. If she sells an outfit for15, what is the percent of markup? Round to the nearest percent.

Louise bought a frame and canvas online for $125. Then she bought the supplies shown in the table and paid a 7% sales tax on these supplies only. She took the amount that she spent on the canvas, frame, and supplies, and marked up the price by 115%. How much did she charge for her painting? Round to the nearest cent.

Find the sale price to the nearest cent: $325 tent; 15% discount.

A swimsuit is on sale for $45.50. If the sale price is discounted 5% from the original price, what was the original price? Round to the nearest cent.

Find the simple interest earned, to the nearest cent, for the principal, interest rate, and time: Nina's grandmother deposits $3,000 into a savings account for her. The account pays 5.5% simple interest on an annual basis. If she does not add or withdraw money from the account, how much interest will she earn after 21 months? Round to the nearest cent.

Evelyn is buying a motorcycle that costs 14,000. The tax rate is 6.75%, and she plans to make a down payment of1,500. The sales tax is added before the down payment is applied. She is considering a three-year loan. What will be her monthly payments? Round to the nearest cent.

Mai bought some party supplies from an online store. The shop charges a $7.95 shipping fee or 6.25% of the total purchase, whichever is greater. Suppose Mai's total purchase is $128. How much shipping will she pay?

Mrs. Jackson needs to earn $3,000 a month. How much does she need to sell if she earns 15% commission on everything she sells?

A mayor estimates that 4,000 people will attend the first day of the county fair. A total of 8,400 people actually attend the first day of the fair. What is the percent error of the mayor's estimate? Round the answer to the nearest tenth percent, if necessary.

Oliver estimates the weight of his cat to be 16 pounds. The actual weight of his cat is 14.25 pounds. What is the percent error of Oliver's estimate rounded to the nearest tenth of a percent?

A toy company that makes bubbles fills its 8-ounce bottles using a machine. To check that the machine fills the bottles with the proper amount, the company randomly checks bottles off the assembly line. A bottle passes inspection if the percent error of the amount is 2% or less. What is the range of values that a bottle could contain to pass inspection? Round to the nearest hundredth.