40 q: evaluate. 9^2+2x4−5 a.21 b.75 c.84 d.327 no false answers, no spamming to get points, no saying "why don't you just try"

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)