Evaluate.-2 - 7
A. 9
B. -5
C. 5
D. -9
Answer: D
Mathematics
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Simplify. Do not use negative exponents in your answer.(a-5b-4)(a-4b-7)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If all of 82 available apple trees are to be planted on a plot of land, is there more than one possible array in which they can be arranged with the same number of trees in each row? If so, how many different arrays are there?
A. Yes, two. B. No C. Yes, three.
Mathematics
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true.Sn: 2 + 7 + 12 + . . . + (5n - 3) = 
What will be an ideal response?
Mathematics
Find an equation of variation for the given situation.y varies inversely as x and y = 0.875 when x = 8
A. y = 
B. y = 
C. y = 7x
D. y = 
Mathematics