Name the property that justifies the statement. All variables represent real numbers.
+ 
= 0
A. Identity property of addition
B. Inverse property of addition
C. Associative property of addition
D. Commutative property of addition
Answer: B
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Solve the problem.John owns a hot dog stand. His profit, in dollars, is given by the equation 
where x is the number of hot dogs sold. What is the most he can earn?
A. $108 B. $150 C. $87 D. $49
Determine the y-intercept.
A. (0, 2) B. (0, 1) C. (0, -1) D. (0, -2)
Solve the problem.The energy E (measured in joules) released by an earthquake of magnitude M on the Richter scale 
is given by the equation 
. Suppose an earthquake registers 7.9 on the Richter scale. Let I0 = 1. How many joules of energy were released?
A. E = 16.2510 joules B. E = 107.9 joules C. E = 1016.25 joules D. E = 7.910 joules
Evaluate the expression. Write your answer without exponents.(-11)0
A. -11 B. -1 C. 0 D. 1