Answer:
A. 9.7%
Step-by-step explanation:
margin of error:
z * 
n is sample size
z is the z score (for a 95% confidence interval you would use 1.96)
p is the sample proportion
to solve for 'p', remember that if a decimal value is given, use that. but if it is a whole number, then divide that number by the sample size, and substitute it into the formula.
in this case we are given 43% so 0.43.
in the formula :
1.96 * 
if you calculate this you get around 0.09703 this is 9.7%
I don't know but I think its c, because she was trying to convert 15 HOURS not minutes
Answer:
look at picture
Step-by-step explanation:
x: adult tickets
t: children tickets
Answer:
See below, please
Step-by-step explanation:
The right:


The left:

So, after comparing the right side and the left side of this equation, we know
1)

2)

3)

So,

The 3 is distributed to the a+b inside the brackets........