Solve the problem.The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall. If a room with a perimeter of 60 feet and 
walls requires 
of paint, find the amount of paint needed to cover the walls of a room with a perimeter of 50 feet and 10-foot walls.
A. 10 qt
B. 5 qt
C. 50 qt
D. 500 qt
Answer: B
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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 inequality. Write the solution set in interval notation.x2 - 6x ? -8
A. [2, 4] B. (-?, 2] C. [4, ?) D. (-?, 2] ? [4, ?)
Provide an appropriate response.The federal tax withheld from a paycheck is based on:
A. all of these are used to determine the amount of federal tax withheld B. the number of withholding allowances the person claims C. the employee's gross earnings D. the employee's tax-filing status
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500