I need these answers now please !! ​

∠1 and ∠2 are complementary. ∠1=x°∠2=(3x+30)° select from the drop down menu to correctly answer the question. what is the value of x? . a.15 b.25 c.30 d.40 e.55

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

What expression is equivalent to 1/2(2+3x-6)