4) Combine like terms: 6m + 12w + 50 -12w + m -50

7m

Step-by-step explanation:

6m + m = 7m

12w -12w = 0

(They cancel out!)

-50 +50 = 0

(They cancel out as well!)

And so you are left with 7m!

Hope this helps! ^^

answerthe vertex form

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.