Practice Test 6

A gym charges a monthly membership fee modeled by $C = 12m + 35$, where $C$ is the total cost (in dollars) after $m$ months. What does the 12 represent in this context?

A bacteria culture grows according to $N(t) = 300\cdot 2^t$, where $t$ is hours and $N(t)$ is the number of bacteria. What does the parameter $300$ represent in this context?