WILL MARENAS BRAINLIEST Half of Maria's boxes were destroyed in a fire. She bought seven more boxes.
Write an expression to show how many boxes she started with, b.

Step-by-step explanation:

b= number of boxes she started with

We know that half of her boxes were destroyed in a fire, so we can represent that as , because she'll now have 1/2 of her boxes.

She then buys seven more, so we can add 7 to the equation, .

89

step-by-step explanation:

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: