Answer:
$77.18
Step-by-step explanation:
Fill in your equation like this:
and
and
so
B = $77.18
30 + 8 = 38 desks
38 x 4 = 152 legs
If you did not add those eight desks then you will have 120 legs.
So, the amount of legs will go up by 32 if you add 8 more desks.
Multiply the numbers than just add the two numbers