Question

Help me please,Thanks

Answer 1

The length is 10.

Equation:

`7 (1)/(2)` * 2 * l = 150

Multiply
`7 (1)/(2)` and 2:
15 * l =150

Divide both sides by 15:
l = 10

Answer 2

volume is width times length times height.

so you have to do the opposite. divide the volume by the width and the height to find the length.

150/7.5 = 20
20/2=10
10=length :)