I think you want a rounded answer. The answer would be 200,000
I believe the correct answer is B. -5
X is the unknown value. The word "of" means to multiply. 40% in decimal form is 0.40. So "40% of a value" means "0.40x".
20=0.40x
Divide both sides by 0.40:
x=50

The solutions must be less than or equal to 5.

All the solutions are less than or equal to 5 for
a≥-15.