Answer:

Step-by-step explanation:

Step 1: Divide the numbers

Step 2: Simplify

Step 3: Simplify

Therefore, the simplified answer is 
Answer:
7 units
Step-by-step explanation:
Simply count the units between A and B :)
Answer:
7^15
Step-by-step explanation:
7^5^3 = 7^(5*3) = 7^15