Question

1. 10mnp, if m = 1, n = 2, and p = 4 *
A. 17
B. 18
C. 70
D. 80
2. m + 2n + 3p, if m = 1, n = 2, and p = 3 *
A. 11
B. 13
C. 14
D. 15
3. 3mn – 6p, if m = 1, n = 2, and p = 3 *
A. -12
B. -2
C. 2
D. 12
4. 4a – 3b + c, if a = -2, b = 4 and c = -5 *
A. -1
B. -25
C. -15
D. 25
5. 3c + bc – 2a, if a = 12, b = 5, and c = 4. *
A. 67
B. 132
C. 8
D. 84
6. These are two or more terms which have the same literal coefficients. *
A. Dissimilar
B. Similar
C. Variables
D. Constants

Answer 1

Answer:

$1) \: \: 10mnp \\ = 10(1)(2)(4) \\ = \: \: \underline{ \underline{80}} \: \: (D) \\ \\ 2) \: \: m + 2n + 3p \\ 1 + 2(2) + 3(3) \\ = 1 + 4 + 9 \\ = \: \: \underline{ \underline{14}} \: \: (C) \\ \\ 3) \: \: 3mn - 6p \\ 3(1)(2) - 6(3) \\ = 6 - 18 \\ = \: \: \underline{ \underline{- 12}} \: \: (A) \\ \\ 4) \: \: 4a - 3b + c \\ 4( - 2) - 3(4) + ( - 5) \\ = - 8 - 12 - 5 \\ = \: \: \underline{ \underline{ - 25}} \: \: (B) \\ \\ 5) \: \: 3c + bc - 2a \\ 3(4) + (5)(4) - 2(12) \\ = 12 + 20 - 24 \\ = \: \: \underline{ \underline{8}} \: \: (C) \\ \\ 6) \: \: Similar \: \: (B)$