Let P be the set of polynomials. Let a, b, c, and d be elements of P such that b and d are nonzero elements of P. Which statement about this product must be true?

A.
The product is a polynomial.
B.
The product is a rational expression.
C.
The product is a rational number.
D.
The product is an integer.

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

How do you find the circumfrance of a circle?