Solve the problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 45 staff members and needs at least 30 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 18 counselors and 12 aides
B. 35 counselors and 10 aides
C. 12 counselors and 18 aides
D. 27 counselors and 18 aides
Answer: C
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Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.
a = b = 6 m
A. 40 m B. 9.1 m C. -10 m D. 82 m
Find the distance between the point and the line. Round your answer to four decimal places.
?
?
A. 
B. 
C. 
D. 
E. 
Factor the polynomial completely.(x - 7)2 - 9
A. (x + 4)(x + 10) B. (x + 2)(x - 16) C. (x - 4)(x - 10) D. (x - 10)2
What are the dimensions of an isosceles right triangle with a four-inch hypotenuse and an area of 4 square inches? ?
A. 
in. × in. × 4 in.
B. 
in. × in. × 4 in.
C. 
in. × in. × 4 in.
D. 
in. × in. × 4 in.
E. 
in. × in. × 4 in.