Please help I have no idea how to do this :3

Ineed asap.i cant understand this question i need someone to me right away

Given f(x)=2x^2-8x+6 and g(x)=3x-1 find f(x) +g(x) a. 2x^2+5x+5 b.2x^2-11x+7 c. 2x^2-5x+5 d.2x^2-5x-5

329 people went to an amusement park. $906 was made that day. $1.5 per kid. $4 per adult. how many kids and adults went?