1.) What are the first five terms of the following sequence? a₁= 42,a_n=a_{n- 1}- 7

A)7, 14, 21, 28, 35

B)42,7,1, 1/7,1/49

C)42, 35, 28, 21, 14

D)42, 49, 56, 63, 70

2.)

V 11 (5, 10) 10 9 (4, 7) 6 5 (3, 4) N (2, 1) 1 2 3 4 5 7 8 9 -1 (1, -2) -2 -3