20 Questions

Questions and Answers

- 1.Simplify
- 2.Write 0.0000451 in scientific notation.
- 3.
- 4.Simplify:
- 5.Solve:
- 6.Solve:
- 7.Jack and Donna shared the grocery bill with other roommates. Jack paid one-fifth of the bill and Donna paid one-fourth. Together they spent $63. How much was the grocery bill?
- 8.The cost of my cab ride was $9. This was a $5.25 pick-up fee plus $0.75 per mile. How many miles did I go?
- 9.Evaluate for
- 10.At the beginning of the month your bank account had a balance of $1,400. You withdrew a constant amount for 20 days. After those 20 days the balance was $250. How much were the daily withdrawals?
- 11.
- 12.Solve for
*x*: - 13.Charles' cat eats 54 pounds of cat food a month. If there are 16 ounces in 1 pound, then how many ounces is this?
- 14.A basketball costs $2.50 more than a soccer ball. Together a basketball and a soccer ball cost $18.48. How much does a soccer ball cost?
- 15.The following histogram is based upon a survey when teens were asked how many hours a day they spent using a computer. (a) How many teens spent 4 or more hours? (b) How many teens were surveyed? (c) What percentage spent exactly 6 hours?
- 16.The length of a table is two more than three times the width. If
*w*represents the width, then write an expression for length. - 17.Make a table containing 3 solutions to the equation and graph the equation:
- 18.At the store you bought 3 bags of chips and 2 jars of salsa. A jar of salsa costs $2 more than a bag of chips. If you spent $14.25, how much did each bag of chips cost?
- 19.Give the coordinates of points A and B, which are plotted in the following graph:
- 20.The local sales tax is 4%. If Jack buys a calculator that costs $85, how much tax will he be charged?