20%of what number is 80?

Mary had $25,000 to invest. She invested part of that amount at 3% annual interest and part at 5% annual interest for one year. The amount of interest she earned for both investments was $1100. How much was invested at each rate?

Explain the significance of m and b in y = mx + b.

Susanna spends a total 0f 47 minutes on her project. How many more minutes than Susanna does Abby spend working? Draw a number line to model the problem, and write an equation to solve.

Meg is 6 years older than Victor. Meg's age is 2 years less than five times Victor's age. The equations below model the relationship between Meg's age (m) and Victor's age (v) : m = v + 6 m =

A certain tablet computer depreciates (loses its value) at a rate of 12 the original value every 2 years. If you bought a tablet 6 years ago and it's now worth $75, how much did it cost when you bought it?

If Elliot makes the same number of shots for each of his 11 games, what is the fraction that represents the total of shots he made in all of his games this season?

A water skier is pulled behind a boat by a rope. The rope has a tension of 290 N and is at an angle of 33 degrees. What is the x component of the tension? A. 192 N B. 215 N C. 243 N D. 158 N

Solve each system of equations by graphing 4x-y=5 and. 2x+y=7

Which set of ordered pairs could be generated by an exponential function? a. (-1, - 1/2), (0, 0), (1, 1/2), (2, 1) b. (-1, - 1), (0, 0), (1, 1), (2, 8) c. (-1, 1/2), (0, 1), (1, 2), (2, 4) d. (-1, 1), (0, 0), (1, 1), (2, 4)

The sum of three consecutive numbers is 498. what is the 3rd number