What is 15.839 rounded to the nearest tenths

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18