C because if you plug one into the other the answer comes out as x and that is how you know it is an inverse
This is just about substitution!! 9(5)-3(5), 3 • 5 = 15
9 • 5 = 45
so Now you have, 45 - 15 = 30
2/3(4/3)= 8/9
Jovan ran 8/9 of a mile in a full hour.
Hope this helps!
Answer: 39$
Step-by-step explanation: calls=x x=30 30*.05= 1.50 40.50-1.50= 39$