Which statement describes the graph of f(x)=-x4+3×3+10×2

Use set builder notation to represent the following set: { -3, -2, -1, 0}

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?