Solve.Amy teaches Chinese lessons for $75 per student for a 6-week session. From one group of students, she collects $3075. How many students are in the group?
A. 41 students
B. 45 students
C. 31 students
D. 43 students
Answer: A
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Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-fifth as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Find the exact value of the trigonometric function. Do not use a calculator or tables.tan 
A. 1 B. 0 C. -1 D. Undefined
Solve graphically. Round solutions to three decimal places, where appropriate.3x2 - 8 = 9x
A. -0.767, 3.667 B. -0.667, 3.767 C. -0.727, 3.707 D. -0.717, 3.717
Write the equation in its equivalent logarithmic form.a2 = 81
A. loga 81 = 2 B. log81 a = 2 C. loga 2 = 81 D. log2 81 = a