Final answer:
The algebraic expression 48s calculates Emiko's total revenue from selling shibori scarves, where '48' is the price per scarf and 's' is the number of scarves sold.
Step-by-step explanation:
The question is asking for an explanation of the algebraic expression 48s, which represents the total sales of shibori scarves Emiko makes and sells. In this expression, '48' is the constant and represents the price of one scarf. The variable 's' represents the number of scarves sold. Therefore, the expression calculates the total revenue by multiplying the number of scarves sold 's' by the price per scarf '48'.