Herbert has some trees removed from his garden. He is told that the bill excluding sales tax at 17.5% is $750. He is then charged $885.
Herbert thinks he has been overcharged. Is he correct?

Pls help

Consider the table below. x y -1 -5 0 5 1 11 2 13 3 11 complete the standard form equation representing the quadratic relationship displayed above, where a, b, and c are constants.

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827