mya and kristal want to track the cost of ice cream at thier local ice cream shop, liv loves ice cream, based on how many scoops of ice cream they buy. because they are recurring customers, they pay a monthly fee of $2, whether or not they buy ice cream that month. last month, kristal paid $4 for 3 scoops of ice cream. two months ago, mya paid $7 for 4 scoops of ice cream. what linear equation can we use to discribe this relationship? (hint: amount of scoops is your input)