Dan is cutting 4.75 foot lengths of twine from a 240 foot spool of twine. he needs to cut 42 lengths, and says that 40.5 feet of twine will remain. show that this is reasonable

Umm.. just started this 2day and its not on my notes(p′︵‵。)

Ineed asap. i cant understand this question i need someone to me right away

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m