Which expression is equivalent to 1/2 B -15 is the answer 1/2 in parentheses B -30 or 1/2 in parentheses B +30 or -1/2 in parentheses B -30 or -1/2 in parentheses B +30

Answer 1

1/2(B) - 15 is equivalent to (1/2)*B - 15, so the answer is 1/2 in parentheses B -30.