Line l is parallel to line m, if the measure of <6 is 75° what is the measure of <4?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36