Qual é a média aritmética dos seguintes números? \( 8,1,2,6,1,4 \)

b) \( 1 \div \frac{2}{9} \)

Test Practice 17. Becka made 2 cards. She drew 3 balloons on each card. Each balloon had 3 stars. How many stars did Beckg use on her cards altogether? \( \begin{array}{ll}\text { (A) } 15 \text { stars } & \text { (C) } 17 \text { stars } \\ \text { (B) } 16 \text { stars } & \text { (D) } 18 \text { stars }\end{array} \)

Mrs. Andrew's classroom has 4 rows of desks with 3 desks in each row. She placed 2 pencils on each desk. How many pencils did Mrs. Andrew place on the desks altogether?

15. \( \frac{1}{15}+\frac{6}{5} \div \frac{12}{7} \)

2. Pasar de decimal a racional (Fracción Generatriz) a) 3,235