Se o polinômio \( P(x) = 2x^{3} - 5x^{2} + x - 6 \) tende a ter uma raiz racional, quais seriam os possíveis candidatos à raiz usando o Teorema da Raiz Racional?

c) \( 3(y-2)+4(2 y+5)= \)

4. Pyn rents a heavy-duty sewing machine to sew sails. He pays \( \$ 12 \) the first day and \( \$ 8 \) a day afterwards. A similar heavy-duty sewing machine costs \( \$ 348 \). How many days of rent would make it worth his while to buy one? A 17.4 B -29 C - 42 D_ 43

4) Find the sum of -2 and its complex conjugate. Write your answer in the form \( \mathrm{a}+\mathrm{bi} \). \( \square \)

5. Paloma's report shows that 8 puppies make up \( 10 \% \) of the total animal population at the shelter. Her next report shows that puppies make up only \( 5 \% \) of the total. She also says that the total number of animals at the shelter has increased by 20 . How many puppies are there now? What is the total number of animals at the shelter? Answer: There are now puppies at the shelter. The total number of animals is

b) \( 6(2 w+5)+9(w+2)= \)