What is the probability that at least two coins will be tails?

A.1/8

B.3/8

C.1/2

D.3/4

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You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form