Topic: Algebra

Which expression is equivalent to 3n + 21?

• 3(7n + 1)
• 10n
• 3(n + 7)
• 3(n + 21)

Which expression is equivalent to 2(m + 1)?

• 2m + 2
• 3m
• 2m + 1

Evaluate the expression (b + 6)/7 when b = 29.

• 5
• 18
• 11
• -2

Evaluate the expression a² – 12 when a = 10.

• 88
• 92
• 76
• 104

Evaluate the expression 9(t + 2) when t = 9.

• 110
• 99
• 108
• 97

Evaluate the expression 7r + 5 when r = 8.

• 68
• 73
• 61
• 56

Evaluate the expression 5q – 10 when q = 7.

• 25
• 30
• 15
• 40

Evaluate the expression (p + 3)/1 when p = 3.

• 9
• 6
• 10
• 5

Evaluate the expression n² – 4 when n = 5.

• 17
• 29
• 33
• 21

Evaluate the expression 6(m + 7) when m = 4.

• 66
• 59
• 79
• 72

Evaluate the expression 4b + 12 when b = 3.

• 12
• 28
• 40
• 24

Evaluate the expression 9a – 2 when a = 2.

• 27
• 14
• 16
• 25

Evaluate the expression (t + 7)/5 when t = 28.

• 2
• 7
• 14
• 19

Evaluate the expression r² – 10 when r = 12.

• 149
• 139
• 124
• 134

Evaluate the expression 3(q + 1) when q = 11.

• 40
• 36
• 39
• 35

Evaluate the expression 8p + 4 when p = 10.

• 84
• 80
• 96
• 92

Evaluate the expression 6n – 7 when n = 9.

• 53
• 40
• 60
• 47

Evaluate the expression (m + 4)/12 when m = 20.

• -10
• 2
• 18
• 6

Evaluate the expression b² – 2 when b = 7.

• 58
• 47
• 45
• 56

Evaluate the expression 7(a + 5) when a = 6.

• 89
• 84
• 72
• 77

Evaluate the expression 5t + 10 when t = 5.

• 25
• 40
• 35
• 50

Evaluate the expression 3r – 1 when r = 4.

• 11
• 15
• 14
• 10