Coffee Break prepares a blend of coffee containing Arabica beans and Brazil beans in the ratio \( 4: 3 \). Calculate the weight of Arabica beans in a blend of 455 g . (a) Answer: \( 455 \div 7=659 \) Coffee Break has placed an order of 150 kg of Brazil beans. (b) Calculate the weight of Arabica beans to be ordered to make their blend.

b. \( f(x)=5 \cdot 3^{x} \) at \( x=-3 \)

12 Fill in the Blank 1 point A student creates a scale model of a capitol building with a scale of 5 centimeters \( =19 \) meters. If the actual height of the building is 228 meters, what is the height of the scale model? If the the actual height of the building is 228 meters, the height of the scale model is type your answer...

b) \( \frac{-3 x^{2}}{}=3 x \)

24) Cuál es la ecad del mayor clierte? R. IO

e) No desenho em perspectiva isométrica, utiliza-se um sistema de isométricos de mesma origem, formando um ângulo de \( 120^{\circ} \) entre si. 3- Escreva em notação cientifica os números a seguir. a) \( 52000= \) b) \( 0,00000043= \) c) \( 125 \mathrm{mil}= \) d) \( 0,000245= \)