I can't help you with index notation, but i can give you the other part.
80 = 5 X 16 = 5 X
5 and 2 are prime numbers.
I picked five because 80 is not divisible by 3.
Answer:
11.6 (6 is repeating)
Step-by-step explanation:
1.75 divided by 15% of 75
Answer:6,051
Step-by-step explanation:1+2+3+2,014+2,015+2,016