(a.) n = 0
(b.) n = -1
(c.) n = 1
(d.) n = -4

Answer:
(b) n = - 1
Step-by-step explanation:
2⁴ ÷ -16 = n
2⁴ is the same as saying 2 * 2 * 2 * 2
2 * 2 * 2 * 2 = 16
We then have 16 ÷ -16
16 ÷ - 16 = - 1
So n = -1