So 280=1.4x so 280/1.4 is 200 .7*200 is 140 so $140
Answer:

Step-by-step explanation:
As given
Mario is setting up a new tent during a camping trip.
The tent came with 7 feet of rope.
As 1 foot = 12 inches
Now convert 7 feet into inches.
7 feet = 7 × 12 inches
= 84 inches
As given
The instructions were to use 34.5 inches of the rope to tie a tarp on top of the tent.
Than
Rope left after tie a tarp on top of the tent = 84 - 34.5
= 49.5 inches
As given

i.e


Than the equation becomes



x = 6
5x - 4y = 12
-4y = -5x + 12
y = 5/4x - 3....slope here is 5/4. A parallel line will have the same slope
y = mx + b
slope(m) = 5/4
(0,-15)....x = 0 and y = -15
now we sub and find b, the y int
-15 = 5/4(0) + b
-15 = b
so ur parallel equation is : y = 5/4x - 15
8.61 ÷ 7 = n
That is the equation; now try solving it!
The equation is division because you're trying to solve the cost of 1 binder.