Astudent pays for 8.9 pounds of apples, if a pound costs 0.99 and the student pays with a ten dollar bill how much will they get back

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

What rotation was applied to triangle def to create d’e’f’?