Frederick uses his metal detector to search for coins on the beach. He has found both newer coins and antique coins. He has found 135 newer coins over the past year, which is 75% of all the coins he has found. How many TOTAL coins did he find?

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