Which expression is the factored form of −1.5w+7.5 ? a.) 1.5(w−5) b.) 1.5(5+w) c.) −1.5(w−5) d.) −1.5(w+5)(p. s.: i really need i have to pass math class)

The correct answer is C) -1.5(w-5).

Both numbers are divisible by 1.5.  Since there is a negative in the first term, we will factor that out as well.  This means we are dividing both terms by -1.5:

-1.5(     )

Taking -1.5 out of -1.5w, we have w left:

-1.5(w    )

Dividing 7.5 by -1.5, we have -5:

-1.5(w-5)