A house sells for $268,500 and a 40% down payment is made. A 30-year mortgage at 7% was obtained.
(i) Find the down payment.
(ii) Find the amount of the mortgage.
(iii) Find the monthly payment.
(iv) Find the total interest paid.

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Acircle has a circumference of 28.36 units what is the diameter of the circle

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?