Tavon has a gift card for $85 that loses $3.50 for each 30-day period it is not used. He has another gift card for $75 that loses $3 for each 30-day period it is not used. Write and solve an equation for the number of 30-day periods until the value of the gift cards will be equal, the determine what the value of each card will be when they have equal value.

Each card will have a value of $15 when they equal after 600 days which also is 20 30-day periods.

Step-by-step explanation:

Card1:

Card2:

x is number of days

2550 - 3.50x = 2250 - 3x

2550 - 0.50x = 2250

-0.50x = -300

x = 600 days

Card1:

         85 - 70 = 15 dollars

Card2:

         75 - 60 = 15 dollars

the range is 19

step-by-step explanation:

the range is biggest number minus the smallest, so in this case it would be

41 - 22 = 19

40 x 50 = 2000

step-by-step explanation: