If 10x−8y=2 and −7x−y=5 are true equations, what would be the value of−17x+7y?

Which shows one way to determine the factors of  x3  +  5x2  –  6x  –  30 by grouping? x(x2  –  5)  +  6(x2  –  5)x(x2  +  5)  –  6(x2  +  5)x2(x  –  5)  +  6(x  –  5)x2(x  +  5)  –  6(x  +  5)

Which will form a composite function?

What is the measure of angle 1? a.28 b.152 c.168 d.64