18. What is the similarity ratio for two circles with areas 21.m2 and 2007 m2?
O
1:100
O 1:10
O 1:5
1:2

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