Please help will mark brainliest

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

True or false look at the picture pls : /