The expenses E and income I for making and selling T-shirts with a school logo are given by the equations E = 535 + 4.50n and I = 12n,
where n is the number of T-shirts.
a. How many T-shirts must be made and sold to break even?
Explain.

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Find the difference (8ab+a+2) - (3ab+6)

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?