​Change the percents to decimals or mixed/whole numbers; change the decimals, fractions, or whole numbers to percents.
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a.0.25% = ______
b.1/4 = ______
c.0.125 = ______

Use a graphing calculator to approximate the x -intercepts of the graph of the function $y=x^2+2x-5$ . Round your answer to two decimal places wherever applicable.

A) $(5,0),(-5,0)$
B) $(0,3.45),(0,-1.45)$
C) $(0,1.45),(0,-3.45)$
D) $(1.45,0),(-3.45,0)$
E) $(3.45,0),(-1.45,0)$

Multiply: $\left(-7y^4\right)\left(-3y^3\right)$

A) $-21y^{12}$
B) $-10y^7$
C) $21y^7$
D) $-10y^{12}$
E) $21y^{12}$

Which type of data involves ratings?

A) Interval data
B) Ordinal data
C) Nominal data
D) None of these

Students in a basic statistics class are allowed to take as much time as needed on their final exam.The exact amount of time it takes each student to finish the final exam is an example of a _________.

A) discrete random variable
B) continuous random variable