v=lwh
v=7x2x2
\ / |
v= 14 x 2
\ /
28
v=28
explanation:
since they gave you the numbers for each variable you just substitute the numbers for each variable.
substitute l with 7
substitute w with 2
substitute h with 2
now you have a simple equation
v=7x2x2
7x2=14
14x2=28
v=28
