If a =8 and c=10 find b with a triangle

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months