Answer:
x = 23
Step-by-step explanation:
Isolate x.
x - 15 = 8
x = 15 + 8
x = 23
Answer:
x + y = 4
Step-by-step explanation:
To write the equation of the line use the point slope form. Then convert to the standard from. Begin by substituting m = -1 and (-2,6).

Answer:
It didn't
Step-by-step explanation:
This is because the coupon adds them for free, this means that one week she got 15 instead of 12. This had no effect on the cost of her perscription because it was free.
Square root of three or 1.7320