One common factor of two numbers is 40. another common factor is 10. if both numbers are less than 100, what are the two numbers?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

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.

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