5. Halla el resultado de estas operaciones. a) \( 9,5 \cdot 10^{4}-3,72 \cdot 10^{4} \) b) \( 8,6 \cdot 10^{3}-5,45 \cdot 10^{2} \) c) \( 7,9 \cdot 10^{-4}-1,3 \cdot 10^{-6} \)

What is the value of \( 8 / 15 \) divided by \( 4 / 5 \) ? \( \begin{aligned} \text { a } & 32 / 60 \\ \text { b } & 2 / 3 \\ \text { c } & 8 / 15 \\ \text { d } & 17 / 15\end{aligned} \)

13) Darrez paid \( \$ 7.99 \) for 3 slices of pizza and \( \$ 1.74 \) for some pop. How much did he spend?

4. Ms. Bailey has a flight from New York to Paris that covers the distance shown in 7 hours. If the plane travels at the same speed per hour, how many miles will Ms. Bailey travel after 4 hours? Show your work.

\( \left. \begin{array} { l } { 5 } \\ { 3 } \end{array} \right. \times \frac { 6 } { 8 } \times ( \frac { - 2 } { 3 } ) \)

Question 3 (1 point) A math teacher has 15 bottles of glue for students to use for their journals. Each student needs a \( 1 / 3 \) of a bottle to glue in their new page of notes. How many students can glue in their notes? a \( 15 / 3 \) b 3 d d d