Identify the polynomial
a^2+ b-cd^3
monomial
binomial
trinomial
four-term polynomial
five-term polynomial

Find the simple interest earned to the nearest cent for each principal, interest rate, and time 735 7% and two and a half years

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.