D is the correct answer partly because it's the only equation that has the correct outcome and partly because you have to divide 1313 by 4 anyways for the answer to make sense.
number of cups you have ÷ number of cups per serving = number of servings
So you have to ask yourself “how many 25 minute sessions are there in 6 hours?” First you have to convert 6 hours to minutes. 6 hours = 360 minutes. Next divide that number by 25. 360 divided by 25 is 14.4. Now you know that there are 14.4 sessions of 25 minutes in 6 hours. Because the Ferris wheel can have 50 people in 25 minutes, you can multiply 14.4 times 50. The answer is 720 people.
Total angles on a straight line
(9x + 8) + 37 = 180
9x + 45 = 180
9x = 180 - 45
9x = 135
Divide through by 9
x = 15
In short, Your Answer would be Option D) 25
Hope this helps!
