A home with a mortgage of $105,000 for 30 years has mortgage payments of $789.60 per month. Determine the amount of total interest this mortgage?

Which expression is equivalent to -12(3x-3/4)

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site

Which of the following choices gives you a slope of 3?