Example of binomial to polynomial
With a complete solution

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Which expression converts 45 degree to radians

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount