Look at this table Gallons Cost, in of Gas Dollars 1 2.15 2 4.30 4 8.60 10 21.50 ? 30.10 20 43.00

what value is missing from the table

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.