A^2 + B^2=C^2 so there for the hypotenuse (13^2) - (5^2) will give you the last side
X - the percent of increase

The percent of increase is approximately 23.8%.
3 quarts, because 12 is how many cups you have, and there are 4 cups in a quart. 12/4 is 3, so 3 quarts.
you solve the square root of 54a*7b*3
Answer: $47.50
Step-by-step explanation: Averages are calculated by adding all values up and dividing by # of values. Here the sum is 285, and 285/6=47.5