Jim is 5 feet, 8 inches (5.7) ft tall. He casts a shadow that is 6 feet, 4 inches (6.3ft) long. A tree casts a shadow that is 19 feet long. How tall is the tree?

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