Eric can spend a maximum of $270 on office supplies. each ream of paper costs $6. each ink cartridge costs $18. which of the following graphs represent the possible combinations of paper and ink cartridges he can buy?

Option D The graph in the attached figure

Step-by-step explanation:

Let

x-----> the number of reams of paper

y -----> the number of ink cartridge

we know that  

----> linear inequality that represent the possible combinations of paper and ink cartridges Eric can buy

using a graphing tool

The solution is the triangular shaded area between the positive values of x and y

see the attached figure

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8