What is 9 to the negative eight power? I'm sooo lost in algebra!!

1/43,046,721

Step-by-step explanation:

So when you have a negative power, instead of multiplying, you are going to divide. This means you have the reciprocal of 9, which is 1/9. So for example instead of multiplying 1 times 9 8 times, your equation will be more like: 1 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9, which when simplified is 1/43,046,721. Now, you might need to have it not in fraction form, but that's just the way I found it to be easiest.

I hope this helps :)

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%