1) 3d + 5, where d = 5 a. -20 b. 20 c. 15 2) yi-8, where y = 4 a. 56 b. - 56 C. 50 d -50 3) 2xy + y, where x = 12 and y = 8 b. 252 a. 250 c. 256 d. 258 4) 4) where x = 10 and y = 2. . y 2 a.-7/8 b. 7/8 c. -817 d. 8/7 5) y2 + x + 7, where y = 9 and x = 5 a. 210 b. 211 c. 212 d. 213
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Answer:
1. 20 or b
2. 56 or a
3. 256 or c
4. -7/8 or a
5. 213, none of the given choices