Afreight train traveled 144 miles in 6 hours. at what rate, in miles per hour did the train travel?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4