Question below explain your answer

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 (monthly car loan payment per $1,000 borrowed) i need !

Three times the sum of a number and seven is negative thirty-six. what is the number?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)