Derek gives a cashier a 20 dollar bill to buy a personal pizza. He is given $8.74 as change. Which equation represents the situation if c is the cost of the pizza?

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

8

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

zero

step-by-step explanation:

f(2)= x-2

plug in the 2 in the "x"

f(2)=2-2

f(2)=0