How do I solve for 40=c+2c-101

Sierra has a total of 61 dimes and quarters in her piggy bank. She has 3 more quarters than dimes. how many dimes and how many quarters does she have?

What is the mass of a statue with a density of 20 and volume of 1000

Does a pair of shoes weigh more than or less than an ounce

780000= Rename the number

A video game system and several games are sold for $ 648. The cost of the games is 3 times as much as the cost of the system. Find the cost of the system and the cost of the games.

Write a specific formula to describe the variation:x varies indirectly with the cube root of y; x=3when y = 125

A sphere has a radius of 12 meters. What is the approximate volume of the sphere? Use 3.14 for π. Round your answer to the nearest whole number.

8^2 - 4 (-3) (-2) / 8-8^2 : 4

Is 70+12 an expression or an equation

Simplify 2 · 5^2. A. 49 B. 20 C. 100 D. 50