Use the properties of angle measures to find the measure of each marked angle.
a = (x + 18)°b = (x + 118)°
A. 79°, 79°, 22°
B. 11°, 22°, 147°
C. 22°, 29°, 129°
D. 11°, 22°, 57°
Answer: C
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Graph the function.Graph the function f(x) = sin 4x + cos 2x.
A. 
B. 
C. 
D. 
Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation 
where x is the time in months, with x = 1 corresponding to January, 
and 
Determine the month with the greatest total sales and give the sales in that month.
A. March; $10,700 B. September; $2700 C. June; $6700 D. December; $10,700
Write an equivalent expression in exponential form.log25 5 = 
A. 
5 = 25
B. 525 = 2
C. 251/2 = 5
D. 51/2 = 25
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
(log5 (r - 2) - log5 r)
A. log5 
B. log5 
C. log5 
D. log5 