Whats the answer and how so i solve for it?

Find an equation for the linear function which has slope -10 and x-intercept -7

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points

Rewrite so the subject can be y in the formula d=m-y/y+n