Multiply. Note that two negatives numbers multiplied = one positive outcome
(-4.5)(-6) = 27
27 x 5.4 = 145.8
145.8 is your answer
hope this helps
1. First, you multiply -4.5 * 6, which should get you 27
2. Then multiply 27 * 5.4, and the answer should be 145.8
