2. Erica and Naomi are both pledging study hours as they prepare for their Algebra 1 EOC next week. Erica says that she is going to study fifteen minutes the first night of this week and then double how much she studies every day for the next seven days. Naomi says she is going to study 3 hours the first day this week and then is going to add on thirty minutes each day for the next seven days. Part A: Write a recursive and explicit formula for each girl's study pledge.

Erica:

Naomi:​