Answer:
420
Step-by-step explanation:
I don’t know if you meant 7 hours or 7 1/2 hours, but if it was in 7 hours, the answer would be around 15 square feet. If it was 7 1/2 hours, it would be 14 square feet.
Answer:
9x^15y^3z^2 is your answer
Step-by-step explanation:
