Ihave to type in my answer and i don't know what 9(a +b) + 4(3a + 2b) so what is the !

21a+17b

Step-by-step explanation: To get rid of the parenthese you must multiply or distribute 9 to all the numbers inside the parentheses.

9(a +b) + 4(3a + 2b)

9a+9b+12a+8b

Combine like terms

9a+9b+12a+8b

21a+17b

And we have our answer.

21a+17b Hope this helps!

dude   i don't even know. i've been trying for hours.

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: