Please explain denominator and numerator​

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Find the zeros of each function. f(x) = 6x^2 - 7x - 20