Explain why this statement is true:

7a + 4 - 2a = 7a + (-20) + 4

Richard has just purchased a small rectangular fish tank that holds 1,170 milliliters of water. The tank has a length of 15 cm and a height of 12 cm. What is the width of the fish tank?

Whats the quotient of -8 divided by 2

You receive a bonus at work for $5,000. You decide to invest in a bank account for 5 years. The bank gives you a 2.45% interest rate. Determine the amount of money that will be in the account if the interest is compounded

The ideal length of a particular metal rod is 30.5 cm. The measured length may vary from the ideal length by at most 0.015 cm. What is the range of acceptable lengths for the rod?

Pruddy needs $90 or more to be able to take family out to dinner she already has save $30 she wants to take her family out to eat in four days Will she have enough money to take her family to dinner for days? explain.

5 hundreds 6 ten thousands 2 ones

The diameter of the base of the cone measures 8 units. The height of the cone measures 6 units. co 8 What is the volume of the cone?

Starting at the top if you cut a square pyramid in half using a single cut, what is the shapes of the newly-exposed section?

8 22/66 in lowest terms

The exponential function y (x) = ce^ax satisfies the conditions y (0) = 2 and y (1) = 1. find the constraint of c and a. what is y (2) ?