Answer:
15 - 3(8³) = 3y³
Step-by-step explanation:
5 – 8³ = y³
3(5 - 8³) = 3(y³)
I got 22.4
I used the formula A=1/2bh
A=1/2(8)5.6
A=4(5.6)
A=22.4