What is the equation of the line of best fit for this data

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

You and a friend went to the movies. you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)