23) Resuelve las operaciones siguientes y simplifica. \( \begin{array}{ll}\text { a) } \frac{5}{6}+\frac{1}{3} \cdot \frac{2}{5} & \text { b) } \frac{5}{6}+\frac{1}{3}: \frac{2}{5} \\ \text { c) } \frac{13}{2}-\frac{1}{2} \cdot \frac{11}{4} & \text { d) } 9+\frac{10}{3}: \frac{5}{6} \\ \text { e) } \frac{5}{6}-\frac{3}{4} \cdot \frac{2}{5}+\frac{3}{2} & \text { f) } 2: \frac{8}{5}-\frac{16}{3}: 4\end{array} \)

Jill wrote the number 40 . If her rule is add 7 , what is the fourth number in Jill's pattern? How can you check your answer?

\( 25+|(-9)-(-7)||| \)

c) \( [(+9)-(-11)] \cdot(-4) \) d) \( -(-1)-(-9) \cdot[(-7)-(+11)] \)

8. Juan debe 160 € en la charcutería. Cuatro de sus amistades quieren ayudarlo, dándole 20 euros cada uno. ¿Qué deuda tiene Juan ahora?

A nurse is preparing to administer cefazolin 1 g IM . The nurse reconstitutes a 1 g vial of cefazolin with sterile water to yield a final concentration of \( 330 \mathrm{mg} / \mathrm{mL} \). How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)