Simplify the expression by combining like terms.-7y + 3 - 2 + 5 + y - 6
A. -8y + 1
B. -8y
C. -6y
D. -6y - 1
Answer: C
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Assume that x, y, and a are positive numbers. Use the properties of logarithms to write the expression 
in terms of the logarithms of x and y.
What will be an ideal response?
The following chart shows some figures from an income statement. Prepare a vertical analysis by expressing each item as a percent of net sales. Round percents to the nearest tenth of a percent. 
A. 41.6%, 8.9%, 46.5%, 5.7% B. 41.6%, 9.0%, 10.0%, 13.6% C. 41.6%, 21.5%, 10.0%, 13.6% D. 41.6%, 8.9%, 4.1%, 5.7%
Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.
Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).
A. 0.818 B. 0.340 C. 0.720 D. 0.107
Solve the problem.The formula A = 
gives a student's average A after T tests and Q quizzes, where each test counts as 2 quizzes, t is the test average and q is the quiz average. Solve for T.
A. T = 
B. T = 
C. T = 
D. T = 