57 = 7 + 2x
50 = 2x
x = 25
x being the number of pages read last week
Hope this helps a little!!
Answer:
Step-by-step explanation:
Given that a survey was conducted that asked 1004 people how many books they had read in the past year.
Results are:
x bar =12.5
s = 16.6
n = 1004
Std error of sample = 
Since population std dev is not known t critical value can be used for confidence interval.
df = 1004-1 =1003
t critical = 1.96
Margin of error 
Confidence interval lower bound 
Upper bound
Answer:
Picture
Step-by-step explanation:
I graphed them
Answer:
4x+12
Step-by-step explanation:
