Answer:
x=−6±3√5
Step-by-step explanation:
A
9 = (1/27)^(a+3)
3² = (3^-3)^(a+3)
3² = 3^(-3a-9)
2 = -3a-9
-3a = 11
a = -11/3
b
h=9
18h+30=192
18h=162
