Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14
B. -5
C. 0
D. 1
Answer: D
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Divide, if possible. If a quotient is undefined, state so.
A. -3 B. 3 C. -2 D. -4
Add the polynomials. Express your answer in standard form.(13mn4 + 4m2n2 + n4) + (4m2n2 - 8n4 - 6mn4)
A. 19mn4 + 8m2n2 + 7n4 B. 7mn4 + 8m2n2 - 9n4 C. 19mn4 - 8m2n2 - 7n4 D. 7mn4 + 8m2n2 - 7n4
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
Simplify the expression by combining like terms.4x - 5w - 7w + 6x
A. 12x + w B. -2x - 12w C. 10x + 12w D. 10x - 12w