Me, i don't really understand how to do this.

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters