There are 40 ducks in a pond. The next spring there is a 40 percent increase. How many ducks are in the pond?

Carl wants to buy a television that cost $500 including taxes. to pay for television he will use a payment plan that requires him to make a down payment of $125 and then pay $70.50 each month for six months what is the percent increase from the original cast of the television to the cost of the television using a payment plan.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Which of the following parabolas opens down?