Lauren jogs at a rate of 2 miles every 2/5 hour. what is her unit rate ?

If a is a nonzero real number then the reciprocal of a is

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 equation can be solved to find x the measure of jk in the apex