Answer:
Step-by-step explanation:
the first one cant be a triangle
im pretty sure the second one can
the third one can
im pretty sure the fourth one cant
Answer:

Step-by-step explanation:

Expand brackets.


Apply radical rule : 


Answer:
12% increase
Step-by-step explanation:
Divide the difference between the two prices by the original price:
1.05/8.95
= 0.12
So, the percent change is 12%
6-4 because the equation for slope is m=y2-y1/x2-x1
Answer:
12mm
Step-by-step explanation:
We have to convert cm to mm. We then subtract 2480 - 2468, thus getting 12.