Can someone explain this limit using l hopital

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

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?

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries