Two numbers are in the ratio of 5: 6 if the sum of the numbers is 66 find the largest number

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

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

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15