Simplifying the expression 3x^3 - 15x^2 + 15x - 75 / 3x^2 + 15 results in the binomial expression

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a. ab=bc b. bc=xy c. ab=wx d.

Can someone tell me if this is perpendicular? !

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?