Answer:
-19
well i think it the answer
yes it is because prime numbers are 2 ,3 , 5 ,7
Answer:
Solving the radical
we get 
Step-by-step explanation:
We need to express the radical
using the imaginary unit i
Prime factors of 81 are: 3x3x3x3
and 
Solving:

So, Solving the radical
we get 
Answer:
n = 40
Step-by-step explanation:
n - 12 = 28
add 12 to both sides to remove the negative 12
n = 28 + 12
n = 40
Answer:
Step-by-step explanation:
It is easy just: step 1: connect all dots then add your numbers up