On his list credit card bill, frank paid a variable finance rate of 1.5 percent on the first $500, and 1 percent on any amount above $500. how much did he pay if the unpaid balance was $741.23?
a. 11.12
b. 9.91
c. 7.41
d. 6.52

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.