Explain whether the sales tax on a $20 item would be double the sales tax on a $10 item. Justify your answer.

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3