Answer: z=83/c - 7 + t
Step-by-step explanation:
The easiest way to determine the score is to use a calculator or spreadsheet and the appropriate probability function.
If you want the top 10%, the score corresponds to the 90th percentile. That score is 316.
If you want the top 15%, the score corresponds to the 85th percentile. That score is 313.
Answer:
20% increase
Step-by-step explanation:
30-25=5

solve for x
(5*100)/25 = 20
2 adults = 5.50 x 2 = 11
3 students = 4.25 x 3 = 12.75
Total = $23.75