Gina wants to ship three books that weigh 2$\frac{7}{16}$ pounds, 1$\frac{7}{8}$ pounds and $\frac{1}{2}$ pound. Which is the best estimate for the total weight of the three books?
(A) $3 \frac{1}{2}$ pounds (B) 4 pounds (C) 5 pounds (D) 6 pounds

To open a door, you push on the part of the door that is farthest from the hinges. Why would it be harder to open the door if you pushed on the center of it?

How much trail mix will each person get lf 5 people share $\frac{1}{2}$ pound of trail mix?
(A) $\frac{1}{10}$ pound (B) $\frac{1}{5}$ pound (C) $2\frac{1}{2}$ pound (D) $10$ pounds

The study of song development in sparrows showed that a. the acquisition of a species-specific song is innate. b. there are two components to this behavior: a genetic template and learning. c. song acquisition is an example of associative learning. d. All of these are correct.

Dr. Watson comblnes 400 $\mathrm{mL}$ of detergent, 800 $\mathrm{mL}$ of alcohol, and $1,500 \mathrm{mL}$ of water. How many liters of solution does he have?
(A) 2.7 liters (B) 27 liters (C) 270 liters (D) 2,700 liters

Find

$$( f \circ g ) ( x ).$$

State the domain of the composite function.

Decide whether each of the following pairs of expressions or equations is equivalent for any value of the variables. If they are, show how you can be sure. If they are not, justify your reasoning completely. $(x+1)(2 x-3)$ and $2 x^{2}-x-3$

Identify each equation without completing the square.

$$9 x ^ { 2 } + 25 y ^ { 2 } - 54 x - 200 y + 256 = 0$$

Why is the hydraulic jump sometimes used to dissipate mechanical energy? How is the energy dissipation ratio for a hydraulic jump defined?

Multiply and state in standard form. $\left(6 x^{7}\right)\left(13 x^{8}\right)$

Verify each identity. $\sin 2 x + \sin 4 x + \sin 6 x = 4 \cos x \cos 2 x \sin 3 x$

Solve each inequality. c-9>5

Solve each system of equations by using the substitution method.

$$\left\{\begin{array}{l}{x^{2}+y^{2}=101} \\ {10 x+y=0}\end{array}\right.$$

Find the inflection points (if any) on the graph of the function and the coordinates of the points on the graph where the function has a local maximum or local minimum value. Then graph the function in a region large enough to show all these points simultaneously. Add to your picture the graphs of the function’s first and second derivatives. How are the values at which these graphs intersect the x-axis related to the graph of the function? In what other ways are the graphs of the derivatives related to the graph of the function? y = 4/5 x^5 + 16x^2 - 25