Solve for g.

four-fifths × g = 40
A. g = 10
B. g = 50
C. g = 32

To solve for g, you can divide both sides by four-fifths, which is the same as multiplying by the reciprocal five-fourths:

g = 40 ÷ (4/5)

g = 40 × (5/4)

g = 50

Therefore, the answer is B. g = 50.