Answer:
No, none of the number need to be 48 for the mean to be 48. To get a mean, you add up all the number and divide it by the amount of numbers.
Example:
the mean of 10, 79, 42, 88, 19, and 50 is 48, but the actual number 48 was not part of the set.
10 + 79 + 42 + 88 + 19 + 50 = 288
288 ÷ 6 = 48
Answer:

Step-by-step explanation:
Given the expression

solving the expression



so the expression becomes


Thus,

No, Rays go one way only since a point block te other way. Otherwise it wont be a ray :)
Based on my calculation i know for sure F
would equal 10
The conjecture is each term is the corresponding Roman numeral of the precious term