If f(x) = x²+3x+1, what is f(x+2)?
a. x² + 3x +3
b. (x+2)²+3(x+2)+1
c. (x+2)(x²+3x+1)
d. x²+3x+9

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