A number is first increased by 20 and then doubled. The result is less than 5 times the number

Which graph depicts the path of a projectile

Vertical angles must check all that apply

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.