Answer:
63
Step-by-step explanation:
Ty worked 4 hours ad earned $28. This means that he earned $7 per hour. So, 7 times 9 is equal to 63. Which means that Ty will earns $63 in 9 hours.
(7/2,-7) ther I hope it help
Answer:

Step-by-step explanation:








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hope it helps...
have a great day!!
I believe the answer is D because the input and the output is the same