Which of the following expressions is not equivalent to -4.5 • -8? -8 • -4.5
8 • 4.5
(8)(-4.5)
(4.5)(8)

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

What 620000 divided by 10 to the third power