Graph the function.A farmer wants to fence a field with a perimeter of 200 yd. The minimum width of the field would be 20 yd and the maximum width would be 70 yd. Plot the graph of the area A of the field as a function of its width w. 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the system by inspecting the graph of the equations.x + 4y = 04x - 4y = -20
A. ?
B. 
C. 
D. 
Mathematics
Add or subtract. Simplify the answer.
- 
A. 2
B. 
C. 
D. 1
Mathematics
Find a ? b.a = 
, b = 
A. 
B. -14
C. 
D. 6
Mathematics
Solve the system of equations by substitution. 9x + y = 0-9x + y = -18
A. (-1, 9) B. (-1, -9) C. (1, -9) D. (1, 18)
Mathematics