Caroline has 10 marbles. one half of them are blue. how many marbles are blue?

What is the solution to the inequality

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

You spend $13 to rent five movies for the weekend. new releases cost $3 and regular movies rent for $2. how many of the movies you rented were new releases and how many were regular movies? answer by substitution of systems.