An elevator ascends, or goes up, at a rate of 750 feet per minute is this height to which the elevator ascends proportional to the number of minutes it takes to get there
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An elevator ascends, or goes up, at a rate of 750 feet per minute is this height to which the elevator ascends proportional to the number of minutes it takes to get there is a direct proportionality. It is always proportional since the amount of time increases and as the elevator changes height it also changes in rate. Proportionality is relating to its relationship mainly positive since as the weight increases the cost also escalates in the process.

C. i believe it is (5×(-20))+(100×(0.7))