The height of a building is proportional to the number of floors.
the figure shows the height of a building with 9 floors.
a. reasoning write the ratio of height of the building to the number
of floors. then find the unit rate, and explain what it means in this
situation.

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.