Beth buys a flute for $400 and pays 6% sales tax. What is the total price she pays for the flute?

$424

Step-by-step explanation:

Multiply 400 by .06 and get 24

add 24 to 400 and you get 424

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:

11

step-by-step explanation:

32.50-7.50=25

225/25=11