A carpenter wants to cut two boards to fit snugly together. The carpenter's squares are aligned segment EF, as shown. Is segment AB and segment CD parallel? Explain please

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?

Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125

Which graph represents the parent function of y=(x+2)(x-2)