How to write 16 as a fraction

Tickets to an orchestra concert cost $25.50 apiece plus a & 2.50 handling fee for each order. if jamal spent $79 how many ticket did he purchase

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?