The cost in dollars $D(m),$ where $m$ is the number of miles driven, of renting a car for a day is $D(m)-1\mathrm{.}45m+32$ What is the independent variable and its units? correct units What is the dependent variable and its units? correct units $$ Select an answer $v$ select the Select an enswer. miles doliars per miles St miles per dollar select the dollars