Iompleta le frasi. a. 45 centinaia equivalgono a .......... decine. b. 1200 unità equivalgono a ......... centinaia. c. 11 decine equivalgono a ......... migliaia. a decine di migliaia equivalgono a....... centinaia.

\( b / 5^{n+8}-5^{n} \) n ontrer que \( b 3 / 5 \)

Facts and figures and other information gathered through observation is

Uaciôn del aprendizale Escribe tres braciones con distintas acepciones de las siguientes palabras: pico, luna, hoja, genio, planta, puente. Luego, reflexiona sobre los aportes de la polisemia a la lengua española.

3. It is early evening. A star appears in the eastern part of the sily. What can be predicted atoou the star muach later at it appears in the northern part of the sky. B. It appears in the southern part of the sky. C. It appears in the same position in the sky. D. I appears in the western part of the sky.

2) Realiza la reducción de términos semejantes en cada una de las siguientes expresiones a) \( 2 x-5 x-x+4 x-3 x-2 x+7 x \) b) \( a+2-3 a-2 a+5-6+a \) c) \( -y^{2}-8 y+2 y^{2}+3 y^{2}-5 y+2+10 y-1 \) d) \( 4 m^{2}+9+3 m^{2}+2 m+8 m-8+5 m-6 \)