What is the probability of obtaining at least one head when a coin is flipped four times?
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A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Solve the problem.Find the selling price of an item which cost a store $166. The store has a 30% markup on cost.
A. $127.69 B. $553.34 C. $215.80 D. $49.80
Mathematics
Simplify.15 ÷ 0.1 - 14 × 0.042
A. 29.5936 B. 0.2176 C. 149.6864 D. 149.9776
Mathematics
Factor when possible.x2y - 9y + 36 - 4x2
A. (y + 4)(x + 3)(x - 3) B. (y - 4)(x + 3)(x - 3) C. (y - 4)(x2 + 9) D. Prime
Mathematics
Match the given equation with one of the graphs.4x2 + y2 - 56x + 192 = 0
A. 
B. 
C. 
D. 
Mathematics