Kara is the manager of a video game store. She is in charge of buying the video games for the store to sell. She buys video games from a wholesaler that sells them for $10 each. The wholesaler also charges a fee of $160 for each bulk purchase. Kara then sells the video games for $14 each.
Write an equation to represent the cost to buy videos from the wholesaler. Let x represent the number of videos bought. Let y represent the total cost in dollars.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

its 50 miles away from the starting point