Select the correct product.(x^2 + 4x + 8)(2x - 1)a. 2x^3 + 7x^2 + 12x - 8b. 2x^3 - 7x^2 - 12x - 8c. x^2 + 6x + 7d. x^2 + 8x - 8

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