Answer:
1) 2a+4a+10-6= 6a + 4
2) 3x-5x+7-7= -2x
3) - 15b+10 +10b= -5b + 10
4) - 4d+d-8-6+3b= - 3d - 14 +3b
1/8
If you can make the bottom numbers (denominator) The same that you can use subtract the top numbers like normally
The rotation is were you keep one point at the same spot and move the others
Answer:
4^2(2-square root 2)
Step-by-step explanation: