Can someone explain how to do this?

Write the equation below the represents the line passing through the point (-3, -1) negative one with a slope of 4

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls