Answer:
x^2-4x+y^2+6y-108=0
Step-by-step explanation:

I think it is b but wait till someone else answers to
Answer: £14.94
Step-by-step explanation:
36 cartons at £1.56 for 4 = 14.04
2 cartons at £45p = 0.90
Answer:
x=-5
Step-by-step explanation:
10x + 15 = 5x-10
-5x -5x
5x+15 = -10
-15 -15
5x = -25
/5 /5
x = -5