Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
logan wrote a business plan for an entrepreneurship class, and now he has to make bound copies. logan could use a printer who charges a setup fee of $42 and $4 for every copy printed. another possibility is to go to the office supply store, where he could pay an up-front fee of $30 and $8 per copy. there is a certain number of copies that makes the two options equivalent in terms of cost. how many copies is that? how much would the copies cost?
for , the cost is $

Set up two equations:

Printer: 42 + 4C

Supply Store: 30 + 8C

C = number of copies.

Now set them equal to each other and solve for C.

42 + 4C = 30 + 8C

Subtract 4C from each side:

42 = 30 + 4C

Subtract 30 from each side:

12 = 4C

Divide each side by 4:

C = 12/4

C = 3

For 3 copies, the cost is $54

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: