How do i do this? ? i’m confused (only #1 and show all work)

Hannah works at the mall selling book bags. she sold 35 book bags in 5 hours. how many book bags did she sell per hour?

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?