Answer:
the original price of the shoes is $75
Step-by-step explanation:
x * 1.08 = 81
x = 81 / 1.08 = 75
75 * 1.08 = 81
You are correct for part A, good job! :D
As for part B, I <em>believe</em> the answers are function, nonlinear, and discrete.
Please let me know if I was wrong at any time. I hope this helps!!
1 and 4
or
A and D
48600
The input or independent variable is x.