Determine whether the following is a difference of squares.11x2 - y2
A. Yes
B. No
Answer: B
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Subtract.-17 - (-6)
A. -23 B. -11 C. 11 D. 23
Solve the problem.A collection of dimes is arranged in a triangular array with 13 coins in the base row, 12 in the next, 11 in the next, and so on with 1 dime in the last row. Find the value of the collection.
A. $9.10 B. $18.20 C. $4.55 D. $0.91
Solve the problem.A box contains 4 slips of paper, on each of which is written the number 1, 2, 3, or 4, respectively. A slip is drawn, and the number on it is noted. That slip is put aside, and another slip is drawn and the number on it noted. What is the probability thata) the sum of the two numbers is 5?b) the first number drawn is a 2 and the second number is not 5?c) the sum of the two numbers is not 10?
A. a) 
b) 
c) 0
B. a) 
b) 
c) 1
C. a) 
b) 
c) 0
D. a) 
b) 
c) 1
Write a system of equations for the problem, and then solve the system.A biologist collected 305 fern and moss samples. There were 37 fewer ferns than moss samples. How many fern and moss samples did the biologist collect?
A. Fern samples: 171; moss samples: 268 B. Fern samples: 171; moss samples: 134 C. Fern samples: 104; moss samples: 134 D. Fern samples: 134; moss samples: 171