Help me please I appreciate it

(-2,-4)  

Step-by-step explanation:

To find the midpoint between two points we need to find the mean average between the x  and the y .

Since we know the midpoint  will have to represent the missing coordinates by the variables.

    Solve for x to find the x coordinate by first multiplying both sides by -4.

-6 + x = -8        Add -6 to both sides

+6        +6  

x = -2  

The x coordinate of the B is -2  now  we need to find the y coordinate.

    Multiply both sides by 2

4 + y = 0     Subtract 4 from both sides

-4        -4

y = -4  

The y coordinate is -4  so the coordinates will be  (-2,-4)

518,400

step-by-step explanation:

the area is multiplying all the given measurements together.

40 * 18 * 30 * 24 = 518,400