The student council at Hillsdale High School is making T-shirts to sell for a fundraiser, at a price of $ 10 each. The costs, meanwhile, are $ 9 per shirt, plus a one-time setup fee of $ 79.
Selling a certain number of shirts will allow the student council to cover their costs.
What will the costs be? How many shirts must be sold?

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

l.ln.lln.k.nkl

step-by-step explanation:

55% are girls and 45% are boys : ) hope this

step-by-step explanation:

the answer is 13 cm