Represent each of the following situations with a signed number.The bottom of a lake is 268 feet above sea level.
A. +268
B. -268
Answer: A
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Solve the problem.In 9 weeks, the value of Bob Treatman's day trading account decreased by $207. What was the average weekly change in the value of the account?
A. -$29 per week B. $21 per week C. -$25 per week D. -$23 per week
Solve the problem.The sum of three numbers is -11. The first, minus the second, plus 3 times the third, is -9. The third, plus 5 times the first, plus the second, is -27. What are the numbers?
A. No solution B. 4, 4, 3 C. -4, -4, -3 D. -4, -4, -4
Find the quotient and the remainder.45x2 + 35x - 11 divided by 5x
A. 9x2 + 7x - 
; remainder 0
B. 45x + 35; remainder -11
C. 9x - 4; remainder 0
D. 9x + 7; remainder -11
Identify the parts of each expression. Choose from these labels: variable, constant, and coefficient.
A. a is a constant; b is a variable. B. a is a variable; b is a variable. C. a is a constant; b is a constant. D. a is a variable; b is a constant.