Underline the misplaced modifier or dangling modifier in each sentence. Above the modifier, write M for misplaced, or D for dangling.

Munching on popcorn, the movie was enjoyable.

Write in the blank the correct form of the modifier in parentheses.

This was _____ interesting of the three books I bought. (little)

Write the autoprotolysis reaction of $H_2$ $SO_4$.

Show that $\mathbf{i} \cdot \mathbf{i}=\mathbf{j} \cdot \mathbf{j}=\mathbf{k} \cdot \mathbf{k}=1$.

Underline the misplaced modifier or dangling modifier in each sentence. Above the modifier, write M for misplaced, or D for dangling.

I spoke softly to the horse sitting in the saddle.

¿En qué estado mexicano se encuentran las ciudades de Puerto Escondido y Juchitán?

Answer the following question.

What effects does Chavez say those who volunteer to work for a just cause will experience?

How many milliliters of $1.50 \mathrm{M}$ $\mathrm{KOH}$ solution are needed to provide $0.125 \mathrm{~mol}$ of $\mathrm{KOH}$ ?

Solve the equation using square roots.

$$(x-4)^2=0$$

Calculate the angle between a and b (correct to the nearest degree) if

$$\text{a} = \text{i} + \text{j} - 2\text{k}$$

$$\text{b} = 3\text{i} - 2\text{j} + \text{k}$$

$$\text{c} = \text{j} - 5\text{k}$$

In each of the following sentences, underline the correct spelling of the word in parentheses to complete the sentence.

Example 1. Looking at the falling (leafs, $\underline{{leaves}}$), Rick knew he soon would be busy.

They live and work by the (mottos, mottoses) you see written here.

Find $\mathbf { u } \cdot \mathbf { v }.$ $\mathbf { u } = \mathbf { i } - 3 \mathbf { j } , \mathbf { v } = 8 \mathbf { i } - 2 \mathbf { j }$

Identify the roots of the equation

$$2 x ^ { 4 } - 9 x ^ { 3 } + 7 x ^ { 2 } + 2 x - 2 = 0.$$

State the multiplicity of the root.

Above the italicized word or group of words write M for a misplaced modifier, D for a dangling modifier, or C for a modifier that is correctly placed. $\mathit{Watching \ in \ horror \ as \ the \ building \ burned}$, Pedro and I were busy caring for the stunned survivors.