Casey asks a random sample of students at his high school about their natural hair and eye colors.  The results of his
survey are shown in the relative frequency table.

In the sample, there are 4 more students with brown hair and blue eyes than blonde hair and blue eyes.  
How many total students have black hair?

A system of equations is given.

y = x² - 9
y = -2x - 1

What is one solution to the system?

Select the most appropriate unit for each selection.

A function is given.

What is the value of f(-2) ?

The graph of a system of inequalities is shown.

Create the system of inequalities that is represented by the graph.

The graph of a function is shown.

What is the maximum value of the function?

Sarah sells two types of wristbands, rope or beaded.  She charges more for beaded wristbands than for rope wristbands.  The amount of money, in dollars, that she collects from selling x wristbands of one type and y wristbands of the other type can be modeled by the expression 5x + 8y.

What does the variable y represent in this situation?

A.)  the number of rope wristbands sold
B.)  the number of beaded wristbands sold
C.)  the selling price of one rope wristband
D.)  the selling price of one beaded wristband

The graph of a function is shown:

What is the domain of the function?
A.)  x ≥ -4
B.)  x ≥ -2
C.)  x ≥ 0
D.)  x ≥ 1

The manager of a company uses the function shown to model its profit based on the price of a product in dollars, x.

f(x) = (x - 2)(53 - x)
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A total of 300 children and adults attended a school play.  There were 21 times as many children in attendance as there
were adults.

This situation is modeled by the given system of equations, where a represents the number of adults and c represents the
number of children.

c = 21a
a + c = 330

How many children attended the play?