Question

Which of the following shows the correct process of solving −30+4.5 A.−30+4.5=−3⋅0+4.5=0+4.5=4.5 B.−30+4.5=−1⋅30+4.5=−1⋅1+4.5=−1+4.5=3.5 C.−30+4.5=−3+4.5=1.5 D.−30+4.5=(−3)0+4.5=1+4.5=5.5

Answer 1

the answer is -20 but i didnt see that there?