What is the Pythagorean theorem. I WILL GIVEbr />

Pythagroean Theorom is the used to find lengths on a triangle.

Step-by-step explanation:

So say you have a triangle that side A is 5 inches long, and side B is 10. you will use the formula a(squared) + b (squared) = C (squared)

Your C side is the Side straight up from the right angle.

One you add these up you will get your C(squared), after you get this you will square root this number to get your answer.

(this isnt the question answer but this will help u get it)

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.