Answer:
123.75 
Step-by-step explanation:
find the volume of the sandbox:
l x w x h = 11 x 7.5 x 1.5 = 123.75 
Set this up as a proportion with the model stuff on top and actual building stuff on bottom.

. Cross multiply to get x = 780. The actual building is 780 inches. In feet that is 65.
Answer:
5(3x - 4)
Step-by-step explanation:
5(3x - 4)
use the distributive property
15x - 20
so its correct
One can solve this by first using order of operations, and then combining like terms.
First is parenthesis
9x + 2x(9) - 2(9x)
Now we do the multiplication
9x + 18x - 18x
Now we combine like terms
9x
I got -3.........................
-7 - 7p = 3p + 23
Move the -7p over to the right....by adding
-7 = 10p +23
Move the 23 over to the left by subtracting
-30 = 10p
divide by 10
p = -3