If
the revenue for the week is $2000, and labor cost consists of two
workers earning $8 per hour who work 40 hours each, what is labor cost
as a percentage of revenue?

Acircle has a circumference of 7.850 units. what is its radius?

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.

Charlie tosses five coins. what is the probability that all five coins will land tails up.