Enrique paid $6.75 in sales tax on an item that cost $75.00 before tax. At that rate, how much would he pay in sales tax for an item that costs $110.00 before tax?

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:

there is no grid

step-by-step explanation:

c. 6tan80

step-by-step explanation:

they charge the same amount at 20 minutes.

step-by-step explanation: