The equations in the system below are equivalent.

y=2(x+4)
y=2x+8

how many solutions does the system have?
no solution
one unique solution
two solutions
an infinite number of solutions

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 !

What numbers are included in the set of integers? what numbers are not included?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?