Tavon has a gift card for $65 that loses $2.50 for each 30-day period it is not used. He has another gift card for $55 that loses $2 for each 30-day period it is not used. a. Write and solve an equation for the number of 30-day periods until the value of the gift cards will be equal.
b. What will the value of each card be when they have equal value?

a. If x is the number of 30-day periods, then the equation nothing can be used to find the number of 30-day periods until the values of the gift cards will be equal.