Okay so instead of dividing you will cross multiply.
4n(15)=84(5)
60n=420
420/60=7
Answer: n=7
1. C
2.A
Hope this helps, good luck :D
Answer:
Option B
Step-by-step explanation:
Given that a survey of 500 likely voters showed that 385 felt that the economy was the most important national issue.
Sample size n = 500
favor who feel the ecomomy is the most important national issue x= 385
Sample proportion = 
Sample proportion would be the point estimate for population proportion of voters who feel the ecomomy is the most important national issue.
Hence the point estimate (p-hat0 for p, the population proportion of voters who feel the ecomomy is the most important national issue
is 0.77
(option B)
Answer:
2?
Step-by-step explanation:
it's irrational
A rational number can be put over a fraction, while this number continues forever