Answer: 10
Step-by-step explanation:
50 divided by 10 is 5
10%=5
20%=10
1 + 0.09 = 1.09
90 * 1.09 = 98.1
The original price of the in-line skates was $98.1
domain is correct for b and c
the graph is a function because each value of x has only one y value
hence answer is B