Question: The director of a summer day camp estimates that 100 children will join if the camp fee is $250, but for each $20 decrease in the fee, ten more children will enroll.

[A] Graph the linear equation that represents the number of children who will enroll at a given fee.
[B] Determine the linear equation that will represent the number of children who will enroll at a given fee. Hint: To write the slope, you need two points on the line. Show all work to receive full credit.
[C] Approximately how many students will enroll if the camp is free?  Show all work for full credit.
[D] Approximately how many students will enroll if the camp fee is $180?  Show all work for full credit.