use the graph to state the solution for the system.

x – y = 4 (line a)
x + y = 4 (line b)

a.
(0, 4)

b.
(4, 0)

c.
(–4, 0)

d.
(0, –4)

Step-by-step explanation:

I. x - y = 4 --> y = x - 4

II. x + y = 4 --> y = 4 - x

Solution is x = 4 and y = 0

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)