The manufacturing cost of a cell phone was $124. sellers first marked up the cost by 20 percent. sales were poor, so sellers decreased the markup to 15 percent. calculate the old and new selling prices.

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1