why is 10 to the power of 15 over 10 to the power of 4 equal to 10 to the power of 11? Explain or show your thinking.

Step-by-step explanation:

10 to the power of 15 so that is 15 tens and multiple it. once you get the answer for that you would then do 4 tens multiplied by each other. and than divide 1 quadrillion : by 10000 so that would be 100 billion. then you get to the 10 to the power of eleven which would be 100 billion.

also you could do is 15 - 4 and do the math that way.