Unit 6: Equations and Expressions Study Guide

Which expression is equal to 7³ ?

• 7x7x7

• 21

• 3⁷

• 10

Select all the expressions that have the same value.

• 3³

• 3⁴

• 6²

• 6³

• 9²

Which expression is equivalent to 45a - 10b?

• 5(9a-10b)

• 45(a-10b)

• 5(9a+2b)

• 5(9a-2b)

Here is an expression:2+3^t

Evaluate the expression when t is 1.

Only write the number as your answer

Here is an expression:2+3^t

Evaluate the expression when t is 4.

Only write the number as your answer

Write an expression equivalent to b+b+b+b+b  that is a product of a coefficient and a variable.

Write an expression equivalent to b+b+b+b+b  that is a sum of two terms.

For the equation 2n-3 = 7

1. What is the variable?

For the equation 2n-3 = 7

1. What is the coefficient of the variable?

For the equation 2n-3 = 7

1. Which of these is the solution to the equation? 2, 3, 5, 7,