The bill for dinner totaled $56 before tax and tip. the restaurant added a 6 percent sales tax. if sandra wants to include a 16 percent tip calculated on the bill before sales tax is added, what is the total cost of the dinner?

$68.32

Step-by-step explanation:

Before tip and tax, the total is $56.

The restaurant added 6% sales tax.

6% sales tax on $56 is: 6% * $56 = 0.06 * $56 = $3.36

Sandra wants to pay a tip of 16% on $56.

16% of $56 = 0.16 * $56 = $8.96

The total is the cost before tip and tax plus the tax plus the tip.

Total = $56 + $3.36 + $8.96

Total = $68.32

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:

it's d

step-by-step explanation: