4800/6 = 800
Hope this helps.
Answer:

Step-by-step explanation:

Angle BAC is 45 degrees. The diagonal bisects angle BAD and since all angles in a square are 90 degrees, half of 90 is 45 degrees.
Museum C because for every 3 guests you pay $4(?) each.
3/4
12/16=3/4
18/24=3/4