If the first equation is multiplied by 3 and then the equations are added, the result is . 3x + y = 3
x - 3y = -2

1. 8 x = 7
2. 10 x = 7
3. 10 x = 11

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