0645 + 0745 answer in military time

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Combine like terms to make a simpler expression 3z+z

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?