Simplify. Do not use negative exponents in your answer.(x8y-7z-2)(x-2y-4z6)
A. 
B. 
C. x6y11z4
D. 
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?
Solve the problem.Midtown Antiques collects 4% sales tax on all sales. If total sales including tax are 
find the portion that is the tax amount.
A. $46.92 B. $1128.00 C. $35.12 D. $45.12
A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the approximate number of bulbs that can be expected to last the specified period of time.Less than 690 hours
A. 4857 B. 4853 C. 4860 D. 2357
The two triangles below are similar. Find the missing length(s).
A. x = 4.0; y = 3.9 B. x = 3.5; y = 3.6 C. x = 3.5; y = 3.9 D. x = 2.24; y = 3.6