Calculate the G.C.Dband the L.C.M of the following numbers 72,84 and 60 48,72 , and 36

4 more than -2

Carry out the following arithmetic operations to the CORRECT number of significant figures \( 2.64 \times 10^{3} \mathrm{~cm}+3.27 \times 10^{2} \mathrm{~cm} \) is: \( \begin{array}{ll}\text { A. } 2.967 \times 10^{3} \mathrm{~cm} & \text { C. } 2.967 \times 10^{3} \mathrm{~cm} \\ \text { B. } 2.97 \times 10^{3} \mathrm{~cm} & \text { D. } 2.9670 \times 10^{3} \mathrm{~cm}\end{array} \)

1. Your brother traveled 117 miles in 2.25 hours to come home for school break. What's the average speed that he was traveling?

ACTIVIDAD 3.- Convierte de fraccion a decimal realizando los procedimient encerrar en un cuadro el resultado final. \( \begin{array}{llll}\text { a) } \frac{3}{8} & \text { b) } \frac{6}{4} & \text { c) } \frac{4}{5} & \text { d) } \frac{7}{4}\end{array} \)

9. What is the cost of half a dozen pencils if one pencil costs Rs. 2.00 ?