Write an integer addition expression that represents an elevator starting at street level, goes up 9 floors, then back down for 12 floors to the parking garage. What floor is the parking garage?

3rd floor below ground

Step-by-step explanation:

9 - 12 = -3

3rd floor below ground

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.