To own and operate a poster printer, it costs $250 for the printer and an additional $0.20 per poster for ink. To print out posters at a print store, it costs $1 per poster. Let p represent the number of posters. When will the cost for owning and operating a poster printer equal the cost for printing at a print store?

312.5

Step-by-step explanation:

Since it is $250 plus 20 cents per poster, the equation is 0.20p+250. It is $1 per poster at store and you want to know when the cost is going to be the same so you set them equal to each other.

0.20p+250=p

250=0.80p

312.5=p

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.