What is equal to -8 + (-2.5) + 4.5 + 3y - 5.5

Step-by-step explanation:

-8 + (-2.5) + 4.5 + 3y - 5.5 =  -10.5 + 4.5 + 3y - 5.5

                                             =  - 6 + 3y - 5.5

                                             = -11.5 +3y

3y-11.5

Step-by-step explanation:

We need to combine like terms for this equation.

Since there is no answer in "3y-11.5", we can not solve for y.

A simplified version of your question is:

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:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.