a store sells jump ropes each jump rope costs the same amount during a sale the store reduces the price of each jump rope by $1.80 gavin spens $14.38 on 2 jump ropes at the sale price. What was the price of 1 jump rope before the sale

i dont know

step-by-step explanation:

0.02040816326

"a" determine whether sage found the correct quotient. show your work

step-by-step explanation:

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;