Select each situation that models a constant rate of change o lamar opens a bank account with $300. every month, he deposits another $50. o dora works as a dental hygienist. she gets paid $32 per hour. o timmy earns 3% interest on his bank account every month. o madison is a marathon runner. her average running speed during a marathon is 6 miles per hour. o cody grows vegetables in his garden. his tomato plant doubles in size each month. there can be multiple answers