Step-by-step explanation:
-5x+y+9-4x-8y+11
-9x-7y+20
So i would ask this friend to draw a number line and label 6.2 on the number line. Then i would ask her if she knew what the opposite number of 6.2 is.
Yes- The number line will always continue, its indefinite. This means it can go forward or backwards. Make sure that your friend wrote 0. You always need a starting point. Then tell her to draw the tally marks forward the same way she did backwards. Locate the 6.2 and make all of the numbers negative.
Hi there! The answer is B. 35.

Add 4 to both sides.

Divide by -1.

Divide by 6/5

Therefore, the answer is B. 35.
~ Hope this helps you!
I think it’s A. 12mm Bc if u take away 4mm from the 10mm it gives u the triangles base which is 6mm and then taking away 8mm from 12mm gives u 4mm which would be the height
To find the area of a triangle u need the base and height
Triangle Area= 1/2bh
1/2(4)(6)= 12