Hailey has a summer job at the water slide park. she earns $9.50 an hour as a lifeguard, but never works more than 25 hours in a week. she determines that her salary is modeled by the function s = 9.5h.

what is the domain of this function in this situation?
a) s ≤ 237.50
b) all real numbers
c) {0 ≤ h ≤ 25}
d) {0 ≥ h ≥ 25}
pls ..who ever answers it right will be marked first)

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?