Answer the question.How many 9 letter strings can be formed with the letters D , E , F , and G , if each letter can be used more than once?
A. 262,224
B. 262,344
C. 262,144
D. 262,104
Answer: C
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Find the domain and graph the function.F(x) = 
A. D: (-?, 0)
B. D: (-?, ?)
C. D: [0, ?)
D. D: (-?, 0]
Solve the problem.In how many ways can 8 people line up for play tickets?
A. 1 B. 16,777,216 C. 40,320 D. 8
Determine if each of the following is true or false. If true, explain why.
(a) ?4 + ?9 + ?13 = 180°
(b) ?5 = ?8 + ?10
(c) ?4 = ?1 + ?14
(d) ?2 + ?3 + ?4 + ?11 + ?12 + ?15 = 360°
Solve the problem.When a tow truck is called, the cost of the service is given by the linear function 
, where y is in dollars and x is the number of miles the car is towed. Find and interpret the slope of the linear equation.
A. m = 2; The number of miles the car is towed increases at a rate of 2 miles per dollar spent on the service. B. m = 70; The number of miles the car is towed increases at a rate of 70 miles per dollar spent on the service. C. m = 70; The cost of the service increases at a rate of $70 per mile the car is towed. D. m = 2; The cost of the service increases at a rate of $2 per mile the car is towed.