Answer:
the answer is 5 dollars
Step-by-step explanation:
Mean = ∑x/ N
91 = ∑x / 150
∑x = 150 * 91 = 13650
x= 6825 and y = 6825
4x = 300*99
x= 300*99/4 = 7425.
So a is correct asnwer