Step-by-step explanation:
A.Confidence Level: 99.7%; Confidence Interval: 42 to 48
B.Confidence Level: 95%; Confidence Interval: 43 to 47
C.Confidence Level: 68%; Confidence Interval: 44 to 46
D.Confidence Level: 95%; Confidence Interval: 44 to 46
11% annual interest rate in one year
Let the number of weeks needed be x
160 + 7x = 210 + 5x
7x - 5x = 210 - 160
2x = 50
x = 25
Ans: After 25 weeks.
buddy can you provide a picture of the graph so we can actually help with the equation?