To solve 4÷1/3, Matthew thinks about blocks that each weigh 1/3 pound and how many blocks he would need to put on a scale so that the total weight was 4 pounds. What is the quotient of 4 and 1/3?

You put $2000 in an account with a simple interest rate of 1.5%. how long does it take for the account to earn $60?

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.

Which strategy is used by public health to reduce the incidence of food poisoning?