Someone help plz make sure it’s right and no websites or links plz :)

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?