Question

help me please i dont know what to do

Answer 1

Answer:7.5

Step-by-step explanation:

Volume=L*B*H

            =30x

According to question,

Volume=TSA

30x=2(L*B+B*H+H*L)

30x=2(5x+6x+30)

30x=10x+12x+60

30x=22x+60

30x-22x=60

8x=60

x=60/8

x=7.5 (answer)