Assume that r and s are particular integers. 1. Is 4rs even? Prove it or give a counterexample. 2. Is 6r + 4s^2 + 3 odd? Prove it or give a counterexample. 3. If r and s are both positive integers, is r^2 + 2rs + s^2 composite?

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3

Which number line correctly shows 0.8 + 0.3?