X + y = 2 —> y = 2 - x
insert to first equation
2-x=x^2-3x-6
x^2 - 3x - 6 - 2 + x = 0
x^2 - 2x - 8 = 0
(x-4)(x+2) = 0
x = 4 or x = -2
Answer:
Step-by-step explanation:

Wats the question?????????
Answer:
4x10-6 power
you just need to count the spaced or numbers till you get to 4 then put 10 then to the power of whatever and its -6 because it started from a small number
Divide 2.48 by 10 to find the price of 1 slice. = 0.248
Do the same with the other price.
3.18 / 12 = 0.265
The best one to get would be the 10 cheese slices because a single slice is cheaper than the single slices for the 12 slices.
hope this helped! (: