The answer is B) -12x+1.50
To figure this out, use the distributive property and multiply the number on the outside by the numbers inside the parentheses.
A negative times a positive is a negative so, -3 x 4x = -12x.
A negative times a negative equals a positive so, -3 x -0.50= 1.50.
Now combine the two terms together to get -12x+1.50.
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