Tyler orders a meal that costs $15. A. if the tax rate is 6.6% how much will the sales tax in be on Tyler's meal?
B. Tyler also wants to leave a 20% tip for the server. How much do you think he should pay in all explain your reasoning.

A) 99 cents

B) 3 dollars

Step-by-step explanation:

15*0.066=$0.99

15*0.2=$3

(I didn't use post-tax total because most people tip on the pre-tax subtotal, since that is the service charge and they're tipping the service, not the 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:

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96