(7,1) , (3,y); m=-3 find y

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32