The standard length of film on a film reel is 300meters. on the first day of shooting a movie a director uses 15% of te film on one reel. how long is the strip of film that wa used

The standard length of the film reel = 300 meters

The movie director used = 15% of the reel

The length that was used was =

= 45 meters

Hence, on the first day, 45 meters reel was used.

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer