in a small group of ducks, there are 6 males and 2 females, which ratio of males to females is an equivalent ratio

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

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.