Answer:
3 one ofx+2 And 4th one x4

No real solutions, because for all real numbers the square of number is greater or equal 0.
The answer is C, your b in the equation is 4, and your slope is 1/2. Starting from four, you move up one and right two which means the slope is 1/2.
It would be $13.52 for 11 cans of soup
Multiply, then you get 2a - 10 = -2. Then isolate the variable by adding 10 on both sides. you get 2a = 8. divide both by 2 and you get a = 4