Keisha sold 8 ribbons and 6 pins at a craft fair. she sold the ribbons for $3 each and the pons $2 each. how much money did keisha earn?

Since the ribbons are $3 each and she sold 8, she earned $24 from the ribbons. Keisha sold 6 pins which cost $2 each so she earned $12. 24+12=36, therefore Keisha earned $36 dollars in total.

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;