Answer:

Step-by-step explanation:
We are given an expression and are asked to find what it equals. We can see that the two square roots are being multiplied, therefore they follow the same standard as any multiplication problem, do as followed :


Since a square root and constant number are different terms, we cannot combine them together, therefore leave as is :

perimeter = sum of all sides
27 = 9+7.8+x
x (third side) = 10.2
Answer:
There are 4 quarts in 1 gallon.
Step-by-step explanation:
Hope this helped you! :3