What is the perimeter of DEF to the nearest tenth?

DFE is a right angle triangle. The length of DE is 18. Angle D is 38 degree and angle E is 52 degree.

A. 19.4

B. 20.1

C. 25.3

D. 43.3

Taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor with some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)= 2x+1 g(x)= 2x^2+1