2 + 10 = 24
3 + 6 = 27
7 + 2 = 63
5 + 3 =

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Which of the following is the inverse of y = 3∧x y = 1/3∧x y = ㏒3x y = (1/3) ∧x y = ㏒ 1/3∧x