Tavon has a gift card for $45 that loses $2 for each 30-day period it is not used. He has another gift card for $35 that loses $1.50 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?