Answer:
Step-by-step explanation:
a) 12 - n
1st term = 12 - 1 = 11
2nd term = 12 - 2 = 10
3rd term = 12- 3 = 9
4th term = 12 - 4 = 8
10th term = 12 - 10 = 2
b) 5 - 2n
1st term = 5 - 2*1 = 5 - 2 = 3
2nd term = 5 - 2*2 = 5 - 4 = 1
3rd term = 5 - 2*3 = 5 - 6 = -1
4th term = 5 - 2*4 = 5 - 8 = - 3
10th term = 5 - 2*10 = 5 - 20 = -15
