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matt says that the membership in the math club is growing linearly. at the first meeting there were 12 members. by the fifth meeting, the club had grown to 18 members. assuming this growth continues, how many club members can they expect at the seventh meeting?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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