PARAPROFESSIONAL Basic Algebra

If k = 2, m = 8, and n = 6, what is the simplified version of the expression 3k + 3m - 3n?

12

If x = 2 and z = 5, what is the simplified version of the expression xz + zx?

20

Solve the following equation:5^2 • 5^3?

5^5

Which of the following is an expression representing the sum of 5 times x and 14times m?

5x + 14m

Solve the following equation:(7^4)^6 = ?

7^24

Solve the following equation:2^3 = ?

8

Solve the following equation:15k^11 - 7k^11 = ?

8K^11

Solve for b in the following equation. 6b - 5 = 25

b = 5

Solve for n in the following equation. n/2 - 12 = 66

n = 156

Addie had z pancakes and ate 7 of them. Which of the following is an expression representing the number of pancakes remaining?

z - 7