Art bought a 4 boxes of pens, but gave his friend ben 8 pens, and now has a total of 112 pens. how many are in a box? (what equation represents this word problem? )

In a box there are

Step-by-step explanation:

Let

x------> the number of pens in a box

we know that

------> equation that represent the situation

Solve for x

Adds both sides

Divide by both sides

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

do i do it on a graph?

step-by-step explanation: