The cost of a set of 4 tire is $192. what is the unit rate for the cost of 1 tire?

15 point ! ~ see if you know the answer to both you!

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?

What are the greatest common factor of 75 and 30