Find the difference.-15 - (-4)
A. -11
B. 11
C. 19
D. -19
Answer: A
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How long will it take $1,400 to double itself if it is invested at 8% interest compounded semiannually? Please round the answer to the nearest tenth.
A. 8.8 years B. 11.8 years C. 9.3 years D. 7.8 years E. 9.8 years
Write a formula for a linear function f whose graph satisfies the conditions.Slope: - 
; y-intercept: 9
A. f(x) = - 
x + 9
B. f(x) = - 
x - 9
C. f(x) = 
x - 9
D. f(x) = 
x + 9
Find the cube root of the number. Approximate the answer to the nearest hundredth whenever appropriate.12
A. 3.29 B. 2.29 C. 3.46 D. -36
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