List three examples of composite numbers.

If \( 3^2 \) is calculated, what is the result?

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

\( \begin{array}{ll}\text { A) } 28.3+4.98+3.7= & \text { H) } 459 \times 103= \\ \text { B) } 47.698+79.489= & \text { 1) } 349 \times 65= \\ \text { C) } 2.99+0.06+78+16.9= & \text { J) } 64.18 \times 7= \\ \text { D) } 948-329= & \text { K) } 1.232+4= \\ \text { E) } 8.270-136= & \text { L) } 36.108+12= \\ \text { F) } 975-88.15= & \text { M) } 8.5-4= \\ \text { G) } 148.64-29= & \text { N) } 123.5+5=\end{array} \)

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: \( \begin{array}{ll}\text { A. } 2.967 \times 10^{3} \mathrm{~cm} & \text { C. } 2.967 \times 10^{3} \mathrm{~cm} \\ \text { B. } 2.97 \times 10^{3} \mathrm{~cm} & \text { D. } 2.9670 \times 10^{3} \mathrm{~cm}\end{array} \)

how that the product of 12 and 20 is equal to the product of their H.C.F and \( L \)-C.M.