Three tables are placed side by side. One table is 2 feet 10 inches wide, another is 3 feet 4 inches wide, and the third is 2 feet 11 inches wide. How wide are they combined?
Write your answer in feet and inches. Use a number less than 12 for inches.

its not b

step-by-step explanation:

susie has 7 apples

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;