Select the correct answer from each drop-down menu.
A cash card has a starting value of $25. If the card is not used within the first year of its purchase, the value on the card begins to decrease by $2.50 per month.

The relationship between the number of months after the first year and the amount remaining on the card is
A) continuous
B) discrete

The independent variable is the
A) amount remaining on the card
B) number of months after the first year

The dependent variable is the
A) amount remaining on the card
B) number of months after the first year