Answer: -3
Step-by-step explanation:
Answer:
40 Girls.
Step-by-step explanation:
80 multipled by 0.5 = 40
Answer:y=5(6)^x
Step-by-step explanation:
Negative exponents work like this:

So, in order to evaluate a negative exponent, you simply have to invert the base, and then raise to the positive equivalent of the exponent.
As an example, here are the first three exercises:



You can work out the rest applying this logic.
I think it is 64 cause i multiplied