Can someone please help ​

C

Step-by-step explanation:

We can use the pythagorean theorem (A^2 + B^2 = C^2) To solve this question.

For answer A, we add 6^2 (36) and 8^2(64) to get 10^2 (100). This is a right triangle.

For question B, we add ^2 (3) and ^2 (8) to get . This is a right triangle.

For question C, we add 3^2 and 5^2 to get . This is not a right triangle.

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.