Potatoes are on sale at 2 local grocery stores. At grocery mart, a 5lb bag cost 2.58 at Baldwin Market. A 7 lb bag cost 4.20 what is the unit cost for potatoes at grocery mart

This is about circle theorems. someone asap : (

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

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