what are the coordinates for point c on directed line segment AC, with A(2,-1)and C(x, y),for which poiint B(4,2 ) partitions the segment in a raito of 1:3?

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?

Can someone me out here number 4 plz