25 points pls help

which of the following rational functions is graphed below?

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph

Charlie tosses five coins. what is the probability that all five coins will land tails up.

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.