Plot the given point in a rectangular coordinate system.(-4, 5)
A. 
B. 
C. 
D. 
Answer: B
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Calculate the value of the following numerical expression.
- 
? 
A. 
B. 
C. 
D. 
Solve the problem.
The number sequence that corresponds to the figures above is 1, 5, 12, 22, . . . .These are the pentagonal numbers P1, P2, P3, P4, . . . .Use inductive reasoning to find a formula for the nth pentagonal number, Pn.
A. Pn = n(3n - 1)/2 B. Pn = 2n(n - 1) C. Pn = n(3n + 1)/2 D. Pn = 3n(n - 1)/2
Solve the problem. Write the answer in lowest terms and as a whole or mixed number where possible.Find the area of a rectangular banner having a length of 21 feet and a width of 
foot.
A. 
ft2
B. 10
ft2
C. 1 ft2
D. 3
ft2
If y varies directly as x, write a general formula to describe the variation.y = 6 when x = 4
A. y = 2x
B. y = 
x
C. y = x + 2
D. y = 
x