You can do a notebook a door , a frame or a mirror, mostly anything that has angles
Answer: 
Step-by-step explanation:
Find the x-coordinate of the vertex with this formula:

In this case:

Substituting values, we get:
Now we can substitute the coordinates of the vertex into the equation
and then solve for "c".
Then:

Answer:
it is 84
Step-by-step explanation:
What were you watching there on the tv? My little pony? Adventure time?
Answer:
3 minutes and 30 seconds
Step-by-step explanation:
7-5 = 2
3/2 = 1.5 gallons that empty per each minute
1.5 times 3 (minutes) = 4.5 gallons emptied
Remaining gallons to empty = 0.5
0.5 gallons to empty will take 30 seconds
I hope this helps :)