Answer:

Step-by-step explanation:
Using the rule of exponents
=
, then
=
= 
Answer:
32 People
Step-by-step explanation:
I put 40 (Number of birthday cards bought previously) over 125 (Number of expected costumers) and multiplied it by 100 (Total number of card bought previously) to get my answer. Hopefully that helps :)
Answer:
1/3
Step-by-step explanation:
Put your points in a graphing calculator and it will show you the answer
This percentage of scores fall within one standard deviation<span> of the mean.</span><span> 68%</span><span> This percentage of scores fall on either side of the distribution:</span><span> 50%</span>