A group of friends walked into Juju’s Juice Bar ordered a glass of fruit juice each. They spent a total of $94. Some of them ordered mango juice, which sells for $5 a glass, while others asked for pineapple juice, at $6 a glass. If $54 was spent on pineapple juice, how many people were in the group? Let's be accurate as possible.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The amount spent on mango juice is 94 - 54 = 40 dollars. Dividing the 40 dollars by the cost of a glass of mango juice gives us 40 / 5 = 8 people. Since a glass of pineapple juice goes for $6, the number that ordered is 54 / 6 = 9 people. Adding both numbers gives a total of 8 + 9 = 17 people.
The answer: 17.