Use the relation's graph to determine its domain and range.
+ 
= 1 
A. Domain: (-4, 4)
Range: (-2, 2)
B. Domain: [-4, 4]
Range: (-?, ?)
C. Domain: [-4, 4]
Range: [-2, 2]
D. Domain: [-2, 2]
Range: [-4, 4]
Answer: C
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Find the requested value.f(x) = 5x2 + 4, g(x) = x - 4Find f(-5) - g(-5).
A. 130 B. 128 C. 138 D. -124
Use your estimation skills to pick the most reasonable answer. Do not solve the problem.13 - 1.54
A. 11.46 B. 0.1146 C. 1.146
Solve the system by the substitution or the addition method.
A. (5, -6) B. (6, 5) C. (15, -7) D. (12, 3)
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 35 staff members and needs at least 20 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. 8 counselors and 12 aides B. 13 counselors and 17 aides C. 13 counselors and 16 aides D. 19 counselors and 23 aides