Write an equation for the graph.
A. y = -2
B. y = 2
C. x = -2
D. x = 2
Answer: D
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Solve the problem.The spinner shown is spun once. Find the probability that the spinner stops on 5 or 3. 
A. 5
B. 
C. 1
D. 
Identify the rules of algebra illustrated from left to right by the following statement.
(z - 7) + 7 = z + (–7 + 7) = z + 0 = z a. commutative property of addition; additive inverse property; additive identity property b. associative property of addition; additive inverse property; additive identity property c. commutative property of addition; additive identity property; additive inverse property d. associative property of addition; additive identity property; additive inverse property
Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $20 for the repairman to come to the house, to which a charge of $22 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = 20 - 22x B. C(x) = 20 + 22x C. C(x) = 22 + 20x D. C(x) = ( 20 + 22) x
Solve.At Allied Electronics, production has begun on the X-15 Computer Chip. The total cost function is given by 
and the total profit function is given by 
where x represents the number of boxes of computer chips produced. The total revenue function, R(x), is such that 
Find R(x).
A. R(x) = 55x - 0.3x2 B. R(x) = 53x + 0.3x2 C. R(x) = 52x - 0.6x2 D. R(x) = 53x - 0.3x2