Olivia used tiles to make a pattern. She used 28 square tiles. She used 13 more round tiles than square tiles. How many square and round tiles did Olivia use?
Kylie makes a triangular picture frame. What is the perimeter of the frame if each side is 5 inches?
Julia places her stickers in 4 rows. There are 8 stickers in each row. How many stickers does she have in all?
Olga has exactly $12.55. She has one $10 bill, two $1 bills, and 10 coins. Which coins could Olga have?