An acute triangle has 3 angles, 5th grade missed a whole week of school. really confused, last week we were working on dividing fractions now we're working on geometry

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

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?

Complete the steps to find 4.830 ÷ 5