Tom was saving $3000 for a trip. he initially deposited $200 in a savings account and then deposited a fixed amount every month in the account for the next 5 months. then he received a check in the mail. the check was three times as much as the total amount he had saved so far. when he deposited the check in his savings account, he had $300 more than he needed. what was the fixed amount he deposited in the savings account during the 5 months?

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.