The equation 7h=63 can be used to find how many hours h a person needs to work to earn $63 at $7 per hour. How many hours does a person need to work to earn $63? Show your work step by step. Write your answer in a complete sentence.

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Question 5 spring semester final exam math evaluate

Solve 3x-18=2y and 5x-6y=6 by elimination show work