For this case, we must find an expression equivalent to:

By definition of power properties we have:

Rewriting the previous expression we have:
The "-" are canceled and we take into account that:

So:

According to one of the properties of powers of the same base, we must put the same base and add the exponents:

Answer:

Option B
Https://youtu.be/Qo1_xkv2w_M
Answer:
No its not since only 39% if the people who had cavitys had chewed gum regurely
Hope This Helps!!!
Y=55x+200, you multiply the number of weeks by the amount of money, and add 200 because they started with that.