The temperature rises 4 degrees every hour for 10 hours. What is the constant of proportionality in this situation?

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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.