Use a graphing calculator to find the value of f(x) when x= 3 for each function

(i just need the one that are highlighter

If f(x)= 3x+6 which of the following is the inverse of f(x)

In the rectangle below ac=30 units what is de

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2