Solve the problem.John has received scores of 85, 88, 87, and 90 on her algebra tests. What is the minimum score he must receive on the fifth test to have an overall test score average of at least 87? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.)
A. 83
B. 86
C. 85
D. 84
Answer: C
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A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = 9x + 3, L = 21, x0 = 2, and ? = 0.01
A. 0.005 B. 0.005556 C. 0.001111 D. 0.002222
Use the division method to find the GCF of the pair of numbers. If the GCF is 1, write "relatively prime."28 and 36
A. 4 B. 9 C. relatively prime D. 7
Two similar triangles are given. Find the proportionality constant k such that the length of each side of the larger triangle is k times the length of the sides of the smaller triangle. Then find the length of the missing sides of each triangle.
A. k = 3.6; JL = 36, MN = 5 B. k = 4.5; JL = 36, MN = 4 C. k = 7.5; JL = 54, MN = 3 D. k = 6; JL = 54, MN = 4
Use order of operations to simplify the expression.(8 - 1) - (-20 + 16)
A. -3 B. 13 C. 11 D. -29