The circled ones need to know asap

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?

Iwill give you ! what is the measure of ∠v ?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer