Okay so you should find the area and then divide it by 45
120*90= 10,800
10,800/45= 240
240 is the amount of packages you will need to cover the floor
7^2 + 9^2 = 130
Square root of 130 is about 11.4
(X÷2)-12
This is because you break the problem down.
For example half = divide by 2
Gave out= minus
Hope it helps
If you round to the nearest thousands then it would be 4988000.
