Please help and show working out

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Pranza plotted point a in the coordinate plane below.

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?