At a fall festival, a student council sold two types of drinks; hot chocolate and apple cider. the student council earned $1.25 for every cup of hot chocolate it sold and $0.75 for every cup of apple cider it sold. there were 375 cups of drinks sold and the total amount of money earned was $393.75. the following system of equations can be used to represent the situation: x + y =375 and 1.25x + 0.75y = 393.75 how many cups of apple cider were sold? how much money did the student council earn from selling hot chocolate?

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.