Tamika opens a credit card in which the minimum monthly payment is 15%. Her current balance is $2,450, not including the finance charge, and the APR is 20.5%. Assuming she makes a payment of $400 this month, how much will the minimum monthly payment be for the next month?

$367.50

$502.25

$313.78

$426.53

Naruto is choosing between two venues that will deliver food to his house. with probability 1/3 he will choose ramen mania (r), and with probability 2/3 he will choose sushi (s). if he chooses r, 15 minutes after making the call, the remaining time it takes the food to arrive is exponentially distributed with average 10 minutes. if he orders s, 10 minutes after making the call, the time it takes the food to arrive is exponentially distributed with an average of 12 minutes. given that he has already waited 25 minutes after calling, and the food has not arrived, what is the probability that he ordered from r? i am really stuck on how to set this up, so if you could be extra clear, that would be super ! in advance