Answer: The answer is <em>388$</em>
Step-by-step explanation:
First we need to know our domain and range. our <u>domain is POUNDS</u> and <u>range is TOTAL COST of the delivery AND briskit.</u> Next, we need to find how much the briskit cost by <u>itself.</u> The brisket is 38 pounds. So to do this, we use need to subtract; y - x = briskit cost. It would look like this if you plug in the units:
304 - 38=266
Now we are going to find how much EACH POUND COSTS. To do this, all we have to do is <u>divide the briskit cost and how much the briskit weighs:</u>
266/38=7
Now that we know how much the briskit cost and how much each briskit weighs, we are going to use the formula <u>y=mx+b</u> so that we can plug in 50 pounds for our x. It would look like this if you plug in the units:
y= 7x+ 38
y= 7(50) + 38= 388$
*Don't forget the dollar sign :) *