Remember:

When you square root something, you have to find two same numbers that when multiplied will give you that original number.
Hope that helped :)
Due to "order of operations" rules, you MUST do the multiplication -5(12x+8) first, eliminating the parentheses long the way:
8 - 60x - 40
Now combine the 8 and -40 and rewrite the entire answer in 2 (not 3) terms.
I believe it’s 315 inches
180 x .75 = 135 then add that to 180
So, 180+135 = 315