What is the solution to this system of linear equations?

y − x = 6

y + x = −10

(−2, −8)

(−8, −2)
(6, −10)
(−10, 6)

Find the missing dimension extra points

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

Alistair has 5 half-pounds chocalate bars. it takes 1 1/2 pounds of chocalate, broken into chunks, to make a batch of cookies. how many batches can alistair mke with chocalate he has on his hand?