Each month, helder volunteers x hours at the hospital and 8 hours at the local food bank. to find how many hours he will spend volunteering over 3 months, helder calculates: x + 8 + x + 8 + x + 8 what is another way helder can calculate how many hours he will volunteer in total over the 3 months?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]