What is value of the expression - 2r/5s if r = - 1/4 and s = 4/5?

7 less than the ratio of 6

A man weighs 180 lb. He jogs a mile in 8 minutes. How many calories has he used up?

What's 20 divided by 7 times 23 divided by 7

Which number is not in scientific notation? A: 1.10 ⋅ 103 B: 4.0 ⋅ 1016 C: 7.03 ⋅ 10-2 D: 350 ⋅ 102

Estimate the sum of 703 + 620

Tom starts a lawnmowing business. Before he can begin, he purchases a new lawnmower. Each weekend he mows the same number of lawns and earns the same amount of money. Write an equation to show how much money he's earned at any week.

11. A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is $16.65. Find the number of each coin.

How to identify the independent and dependent variable?

Which expression is less than - (-|-4.2|) ? a. |-4.2| b. - (-4.2) c. - | - (-4.2) | d. | - (-4.2) |

A taxi charges a flat rate of $1.75, plus an additional $0.65 per mile. If Erica has at most $10 to spend on the cab ride, how far could she travel?