The question is worded a bit strangely (in my opinion anyway), but I think your teacher wants you to describe how exponents work.
Let's say we had the expression 
The base is 5 as its the bottom most value (think of something like the base of a tree or building). The exponent is 3.
The exponent of 3 tells the reader to multiply the base 5 by itself 3 times like so

With larger exponents, it becomes more tedious to write out all the repeated multiplications, which is why many calculators have an exponent button to save time.
Answer:
1=5
2=1
3= 4
4=3
5=6
6=5
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
the lowest number they can all muliply to is 20
20 x 1 = 20
5 x 4 = 20
2 x 10 = 20
Answer:
Step-by-step explanation:
im pretty sure its the 1st one