Write and solve the equation described below. Four-fifths of a number minus two is equal to three-tenths of the same number plus one. Plzzz help I don’t understand and I’ll give brainliest!

Which choice represents the sample space ,s for this event

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year