X=y-1
y=4-2x
solve by using the substitution method. pls explain how you did it too pls

How to determine whether two known pairs of points are on the same line.

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 i need !

Which expression shows the sum of the polynomials with like terms grouped together