Algebra Diagnostic Test

What is the slope of the line that passes through the following points:
(7, 10) and (10, 9).

• -1
• -1/3
• 4
• 3

What is the slope of the line that passes through the following points:
(9, 3) and (7, 8).

• 6
• 3
• -5/2
• 6

Solve.  5n - 4 = 21

• 10
• -5
• 5
• 2

Solve.  -2n - 4 = 32

• 18
• 0
• 16
• -18

Solve.    -11 = 4n + 5

• 2
• 3
• 4
• -4

15 x 19 + 18 ÷ 6 = 

• 250
• 199
• 400
• 288

(10 + 2) X 10 - 3 = 

• 145
• 27
• 117
• 53

1.)  Simplify
 (2a²b⁴z)(6a³b²z⁵)

• 8a⁵b⁶z⁶
• 12a⁶b⁸z⁵
• 12a⁵b⁶z⁶
• 8a⁶b⁸z⁵

2.) Simplify
(3x³y⁵)⁴

• 3x¹²y²⁰
• 81x¹²y²⁰
• 12x¹²y²⁰
• 81x⁷y⁹

If b = 4 and c = 5, what is the value of                bc + b - c?

• 20
• 16
• 18
• 19