Keshia is having a birthday party . Her mom gave her 30 dollars to purchase items for her birthday she bought 16 hats and 16 bags . Each party has cost 0.70 each and each bag cost 0.35 each . How much did Keisha have left after the purchase

$11.20 per hat.

and $5.60 per bag

Keisha has $13.20 left over

Step-by-step explanation:

First, I multiplied .70 by 16 and got 11.20 per hat

Then, I multiplied .35 by 16 and got 5.60 per bag

Lastly, I added 11.20 to 5.60 and got 16.80, and subtracted 16.80 from  30 and got 13.20

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:

the answer is ! ?