Truck accelerates 2 m/s^2 loses its load and has 4/5ths of the original mass, what acceleration can it attain from the same driving force

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)