Finance math
how do you calculate realized income knowing the price of a house the persons buying, that the persons paying 20% down, the monthy mortgage payments, and the interest for the monthly payments?

What point is the projection of q on a) r b) s c) t

What is not true about kl and mn? what is mn? (show your work)

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?