Adivina qué enfermedad tienen o qué les pasó a estas personas.

Tengo ataques de tos y dificultad para respirar.

Write a system of linear inequalities that defines the shaded region.

Write an equivalent expression for $7x+4x+3-1$.

A rectangular kitchen has dimensions of 4 inches in length and 3 inches in breadth on a plan. What is the perimeter of the kitchen in feet if its length is 6 feet? A. 18 feet B. 20 feet C. 21 feet D. 24 feet

(a) Find $\frac{\mathrm{d} y}{\mathrm{~d} x}$ given that $x^2 y+\sin x y=0$.

(b) Find $\frac{\mathrm{d} y}{\mathrm{~d} x}$ given that x sin x y=1.

Which of the following describes the process of galvanization that protects steel from rusting?
(a) Steel is coated with a layer of paint.
(b) Iron in steel is oxidized to form a protective oxide coating.
(c) Steel is coated with zinc because zinc is more easily oxidized than iron.
(d) A strip of magnesium is attached to steel because the magnesium is more easily oxidized than iron.

Complete Alejandra's e-mail with the preterite forms of the words from the list. One word is used more than once.

$$\begin{array}{lllll}\text { abrir } & \text { comprar } & \text { decir } & \text { empezar } & \text { ir } \\ \text { leer } & \text { oir } & \text { subir } & \text { ver } & \end{array}$$

Ella (2)_________________ en el periódico y también (3)_________________ en la radio que iba a (was going to) llover y (4)_________________ que quería comprarme un paraguas nuevo.

Rewrite in equivalent logarithmic form. $8=4^{3 / 2}$

Completa el parrafo con la forma correcta de los verbos entre parentesis. Usa el preterito, el imperfecto o el pluscuamperfecto, segun corresponda.

...nos reunimos en mi casa, la cual \lparenestar\rparen bellamente deocrada.

A box contains equal amounts of helium, argon, and krypton (all gases) at 25 $^{\circ} \mathrm{C}$. Using complete sentences, describe the temperatures, masses, average velocities, and average kinetic energy of the three kinds of gas in the mixture . What do they have in common? What are the differences? How are these properties related?

Rewrite $e^{\frac{1}{2}}=m$ as an equivalent logarithmic equation.

A drum corps can be heard practicing at a distance of $1.6 \mathrm{~km}$ (about 1 mile) from the field. What is the time delay between the drumstick hitting the drum and the sound heard by an individual $1.6 \mathrm{~km}$ away? (Assume the speed of sound in air to be $340 \mathrm{~m} / \mathrm{s}$.)

A Pamela le encantan todos los géneros de la literatura. Marca con una X los géneros literarios.

1. la novela
2. la metáfora
3. el cuento
4. el drama
5. el contexto
6. la estrofa
7. la biografía
8. el simil
9. el desenlace
10. la poesía

Sketch the corresponding graph and state the number and type of roots for each of the following. A quadratic function in which

$$f ( a ) = 0 \text { and } f ( b ) = 0; a \neq b$$