15 Un sottopentola in acciaio ha la forma della fi- gura. II diametro di ciascun cerchio piccolo misura 14 cm e il diametro del cerchio grande 24 cm . Qual è l'area di questo oggetto? [242 \( \left.\mathrm{cm}^{2}\right] \)

Simplify by using the order of operations. Write your answer as an integer or a \( \frac{-2-(1+1)}{9^{2}-5^{2}}=\square \)

By completing the square, work out the the coordinates of the turnin point of the curve \( y=2 x^{2}-20 x+58 \)

7 Kholeka is 156 cm tall. Her brother is 20\% taller than her. Calculate Kholeka's brother's height.

ACTIVIDAD Realice una en la cual analice, según su opinión, la principal causa del conflicto interno que aún se vive Coiombia. ANTECEDENTES

13. Find the corresponding time in a city in the Pacific time zone when it is \( 2: 45 \) P.M. in a city in the Eastern time zone. A. \( 12: 45 \) A.M. B. \( 11: 45 \) A.M. C. \( 1: 45 \) P.M. D. \( 10: 45 \) A.M.