Can someone me with my last homework question, show the work and explain what you did so i can understand! if you do that i might mark you as brainliest! !

Ok, so I worked out the problem.

So for part a) you just multiply 8 by 25% then add the product to get the new perimeter.

Part B you Add all sides for the original square and the new square to get the perimeters of each then you divide the old square perimeter by the new square perimeter to get the percentage.

Part C you get the areas pf bother squares then divide the old square area by the new square area to get the percentage change.

If you have any questions, let me know.

x+14

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;