Answer:
1. a)
2 * 3^3 = 2 * 27 = 54
1. b)
(2 * 3)^3 = 6^3 = 216
2.
(0*1 + 3*2 + 3*3 + 5*4 + 9*5)/(0 + 3 + 3 + 5 + 9) = 4
3
2*16 + 2*9 + 4*4 + 12 = 78 in
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