In order to make a pie crust with an approximate area of 30 square inches, you will need 1 cup of flour, 1/3 cup of butter, and 1/8 teaspoon of salt. determine how much flour, butter, and salt are needed per square inch of pie crust?

the answer is 15% decrease

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.