Before leaving to visit mexico, levant trades 270 american dollars and received 3,000 mexican pesos. when he returned from mexico, he had 100 pesos left. how much will he receive when he exchanges these pesos for american dollars?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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.

What number is 7 units left of -15?