Jason is saving up to buy a digital camera that costs $490.so far, he saved $175.he would like to buy the camera 3 weeks from now. what is the equation used to represent how much he must save every week to have enough money to purchase the camera?

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.