Simplify. Assume that all variables represent positive numbers.
A. 81x4
B. x2
C. 9x2
D. 9x4
Answer: C
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Solve the linear programming 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. 19 counselors and 23 aides B. 8 counselors and 12 aides C. 13 counselors and 17 aides D. 13 counselors and 16 aides
Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
A. 
B. 
C. 
D. 
Use common or natural logarithms to solve the exponential equation symbolically.3(1 + 2x) = 243
A. x = 
- 2
B. x = 2 + 
C. x = 
- 2
D. x = 
- 
Evaluate the expression for the given values of the variables, if possible.2 ? (-m) ? n
m = -10, n = -10
A. -120 B. -200 C. -20 D. -220