Select the first five terms of the sequence. (Assume that n begins with 1.) 0a.] 1 1 I 1 0b.] 1 1 1 1 5'10'15'125'25 QUESTION 2 Find a formula for on for the arithmetic sequence. a' = -4, a\" = -44 0 am, =12-4n C) be, =-12+8n 0 ca, =-4+8n 0 dz: = 8-4\" QUESTION 3 Determine whether the sequence is geometric. If so, find the common ratio. 7, 13, 25, 70,... O a. Geometric sequence, r = 7 O b. Geometric sequence, r = 4 O c. Not a geometric sequence O d. Geometric sequence, r = 9 O e. Geometric sequence, r = 2QUESTION 4 Use the Binomial Theorem to expand and simplify the expression. (6a + 3)3 O a. 216a3 - 108ab - 18ab2 - 63 O b. 216a3 + 108ab + 18ab2+63 O c. 216a3 - 108ab + 18ab2+ 33 O d. 216a3 + 108ab- 18ab2 + 63 O e. 216a3 + 108ab + 18ab? - 3QUESTION 5 Evaluate using Pascal's Triangle. O a. 84 O b. 85 O c. 83 O d. 86 O e. 82