The answer will be
x=root 121
x=11
The new mean age will be greater than 14.2 years because the teacher is older than the previous mean.
Answer:
Prime factors are factors of a number that are, themselves, prime numbers. There are many methods to find the prime factors of a number, but one of the most common is to use a prime factor tree. A prime number can only be divided by 1 or itself, so it cannot be factored any further with a factor tree.
Step-by-step explanation: