S(t)=600e^-0.3t. how many hours will it take for the concentration of the salt to decrease to 100g/l

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

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.