X^2 - 49 = (x + 7)(x - 7) = x^2 - 7x + 7x = 49 = x^2 - 49
I got 0.55 when I did this problem. If I am wrong I am so sorry and please correct me.
Answer:
$0.80
Step-by-step explanation:
Find the unit rate
1 apple costs ?
1.20/6 = cost of 1 apple
1 apple = $0.20
4 apples = $0.20 * 4
4 apples = $0.80
(-2,3) (2,1) -2-1=-3 3-2=1 so that means mx+-3