Solve for the indicated variable.6rx + x = B; x
A. x = B - 6r -1
B. x = B - 6r + 1
C. x = 
D. x = 
Answer: D
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Solve the problem.A salesman packed 3 shirts and 5 ties. With one shirt, he could wear all 5 ties. With another shirt, he could wear 4 ties. With the third shirt, he could wear only 3 ties. How many different combinations did he have?
A. 60 B. 11 C. 23 D. 12
Solve the problem.Ron can mow the lawn in two hours more time than Paul. Working together they can mow the lawn in 5 hours. How long does it take each of them working alone?
A. Paul: 9.1 hr Ron: 11.1 hr B. Paul: 10 hr Ron: 12 hr C. Paul: 8.3 hr Ron: 10.3 hr D. Paul: 8 hr Ron: 10 hr
Determine whether the relation is a function.
A. Function B. Not a function
Solve the problem.The function F described by F(C) = 
C + 32 gives the Fahrenheit temperature corresponding to the Celsius temperature C. Find the Fahrenheit temperature equivalent to -5°C.
A. 23°F B. 5°F C. 14°F D. -4°F