Find the product. Write the answer in standard form.(3 + i)(3 - i)(6 + 7i)
A. 60 + 7i
B. 48 + 56i
C. 54 - 7i3
D. 60 + 70i
Answer: D
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Provide an appropriate response.Fred and Sue want to fence in a rectangular area in their yard for a vegetable garden. Suppose that they have 30 feet of fencing. Sue tells Fred that she wants to put up the fence in such a way as to obtain a rectangular garden with the largest possible perimeter. Fred replies that the perimeter will be the same for any rectangular garden that they construct as long as they use all 
of the fencing. Is Fred correct? Explain.
What will be an ideal response?
Write an iterated integral for 
S = {(x, y, z): 0 ? x ? 7, 0 ? y ? 5, 0 < z ? (6 - 4x - 4y)}
A. 
B. 
C. 
D. 
Provide an appropriate response.Using the example of 9 ÷ 3 × 6, explain why the order of operations is important.
What will be an ideal response?
Simplify the expression by using the order of operations.78 - 6 ? 5 ? 2
A. 65 B. 720 C. 96 D. 18