Symbols are appealing because they often carry powerful associations and emotional overtones. Write a brief essay analyzing the symbolism in "Through the Tunnel." First, consider the three settings: the wild beach, the safe beach, and the tunnel. Tell what you think each setting must symbolize for Jerry. Then, consider the larger symbolic meaning of Jerry's passage through the tunnel. What does his trip represent? Why is it a powerful symbol? Support your analysis, and elaborate with direct references to details in the story. (You can take notes in a chart.)

Determine whether the subset of $\boldsymbol{M}_{\boldsymbol{n}, \boldsymbol{n}}$ is a subspace of $\boldsymbol{M}_{\boldsymbol{n}, \boldsymbol{n}}$ with the standard operations. Justify your answer.

The set of all $n \times n$ matrices whose entries sum to zero

Read the information in A Closer. Do you think Jerry's experience can be viewed as an initiation rite? What similarities and differences can you find in his experience and the coming-of-age rites in other cultures?

Solve the equation. State any extraneous solutions.

$$\frac{y + 4}{y - 2} + \frac{6}{y - 2} = \frac{1}{y + 3}$$

Retell the main events of this story as Jerry might tell them to his best friend when he returns from vacation or to his own son later in life.

Compared with an electron, a proton has (1) more mass and the same charge, (2) more mass and an opposite charge, (3) equal mass and the same charge, (4) equal mass and an opposite charge.

Beginning at the lowest trophic level, arrange the following food chain found on the Serengeti Plain of Africa in the correct sequence. (a) Shrubs-gazelles-cheetahs-decomposers, (b) Shrubs-decomposers-gazelles-cheetahs, (c) Shrubs-decomposers-cheetahs-gazelles, (d) Gazelles-decomposers-cheetahs-shrubs, (e) Decomposers-cheetahs-shrubs-gazelles.

describe the right-hand and left-hand behavior of the graph of the polynomial function. f(x) = -2.1x^5 + 4x^3 - 2

Complete. 50.2 g = ? kg

Determine each of the following as being either true or false. If it is false, explain why. The frequency of an alternating current described by the equation $i=8 \sin 60 \pi t(t \text { in } s)$ is 120 $\mathrm{Hz}$

Solve. If an equation has no real solution,say so.

$$\sqrt { x } = 5$$

Explain why point-source pollution is easier to control than nonpoint-source pollution.

Which of the following was found in Earth's first atmosphere? (a) carbon dioxide (b) hydrogen (c) oxygen (d) ozone

Compare. Write <, =, or >. $\frac { 2 } { 9 } y d \ \text{\_\_\_\_\_} \ 8 in.$