Evaluate (n^1)(n^-1) for n 1, 2, and 3. Then make a conjecture about what (n^1)(n^-1) is for any value of n. Explain your reasoning. (I can explain I just need a bit of help for everything else!)

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'