Answer:
81 m²
Step-by-step explanation:
A = 6*10 + 7*6/2
= 60 + 7*3
= 60 + 21
= 81 m²
f^-1(x)=
f(x)=8x^7
x^7=f(x)/8
x=
(15^3)^3
the rest are equal to 15^6:)
True
