Solve the problem.A company charters a boat trip that normally costs $420 per person. A group discount reduces the fare by $5 for each ticket sold; the more tickets sold, the lower the per-person price. The maximum capacity of the boat is 160 people, including a crew of 10 people. What size of group would maximize the boat company's revenue?
A. 42
B. 160
C. 150
D. 84
Answer: A
Mathematics
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Solve the problem.Amy can clean the house in 6 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?
A. 12
hr
B. 2 hr
C. 13hr
D. 12 hr
Mathematics
Provide an appropriate response.Solve the following system of equations using the substitution method: 2a + b = -1 a - 3b = 17
Fill in the blank(s) with the appropriate word(s).
Mathematics
Graph each set of numbers.5, 1, 
, 2
A. 
B. 
C. 
D. 
Mathematics
Find all numbers that are not in the domain of the function. Then give the domain using set notation.f(x) = 
A. 5; {x|x ? 5}
B. 0; {x|x ? 0}
C. 0, -25; {x|x ? 0, -25}
D. 
; 
Mathematics