Me i beg you
a subscription-based website sends out email reminders to 15,000 customers whose subscriptions are due to be renewed, inviting them to renew at a discount. after the email is sent, the number of customers whose subscriptions are due to be renewed decreases at a rate that compounds hourly, for a per-day decrease of 14.4%. the number of such customers after n days is given by the expression below.

15,000(1-0.144/24)∧24n

what does (1-0.144/24) represent?

a. the change per hour in the number of customers whose subscriptions are due to be renewed

b. the number of customers whose subscriptions are still due to be renewed after one day

c. the initial number of customers whose subscriptions are due to be renewed

d. the decay rate, which reveals the hourly rate of change in the number of customers whose subscriptions are due to be renewed