I need help with this problem please!

Question

You are ordering t-shirts in the online store. You have to pay 8.34 dollars per t-shirt and then 13 dollars for shipping. Write a linear model that calculates the total cost of your order if you by x  t-shirts.

Answer 1

So, let's use x as the variable here. The "thing" that would change in this equation would be the number of t-shirts, so x stands for the number of t-shirts. Since each t-shirt is $8.34, we would multiply x by 8.34, so 8.34x. Lastly, since there is a constant of $13 for shipping, that would just get added. So the linear model would be,

y=8.34x+13

Answer 2

Let x be the number of t-shirts. The amount of money you have to pay per T-shirt is 8.34, so the cost of the merchandise is 8.34x. On top of that, you have to pay a flat fee of 13 to ship all of the shirts. Thus, the total cost is 8.34x+13.