You are going to school in a week and you are out to get school supplies. You need a backpack and it costs 9 dollars. Each pack of mechanical pencils cost $7.50. How much do you spend if you buy "y" packs of pencils?
Step-by-step explanation:
9 is initial fee (y-intercept) and 7.50 is the slope.
3x + 2y(100) yes he was correct 2 cups are added each time so 2 times 100 is 200 add the 3 you have 203. i know i’m not an expert but i wanted to help :)