Let's set up a proportion.

Then solve for x:
12 x 800 = 9600
9600/100 = 96
96 is 12% of the 800 students. :)
Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
Answer:
d = 3
Step-by-step explanation:
3.5d + 6.25 = 1 + 5.25d
5.25d - 3.5d = 6.25 - 1
1.75d = 5.25
d = 5.25 ÷ 1.75 = 3
Answer:
I believe the first one is angle bisector and the second one is altitude
Step-by-step explanation:
Well Im just guessing but 1 1/2 foot
You are looking for the circumference. which is C(circumference)=

x r (radius)
the radius is =to half of the diameter.
c=56.55