Answer:
C.
Step-by-step explanation:
=>
i² = -1
i¹⁵ = i²ˣ⁷⁺¹ = (i²)⁷•i¹ = (-1)⁷•i = -1•i = - i
91.2
add to both sides 15.2 so 76+15.2=91.2
-1,7
0,-3
1,-7
5,47
-x-=+
5