Alion eats a sheep in 4h a tiger eats it in 5 h and a bear eats it in 6h how much time does it take for all 3 animals to eat one sheep

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

3.4a=57.8 what is the the value of a

What is the maximum of the sinusoidal function