What is the value of the equation below when a=3 and b=7

a2-2b

The radius of the cone if half the radius of the cyliner

Which expression is equivalent to 2 (3 - x) - 12 + 4x?

18 is what percent of 76

Dalia earned $217.50 by working for 15 hours this week. If she works 18 hours next week, how much will she earn net week?

I am wallpapering a room 9ft by 9ft by 9ft high. How many square feet of paper will he need if thete sre 93 ft^2 of openings in the room

The sum of two numbers is 28. The first number is 7 more than twice the second number. Let a represent the first number. Let b represent the second number. What is the second number? Use the table to guess and check.

The value of y varies directly with x, and y = 4 when x = 10. find y when x = 1. a.-2.5 b. 2.5 c. 0.4 d.-0.4

Multiply. (Examples 1-5) 1. 8 (-12) =

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 20 students and asked each to provide the amount of time they spent traveling to campus.

Maya earns 72 dollars for working 5 hours. How long will it take for her to earn 216 dollars at the same pay rate?