The rectangular top of a small box has dimensions of 140 mm by 230 mm. How long (in centimeters) would a ribbon need to be to go all the way around the edge of the top of the box? 74 cm\.

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