David, ping, mandy, and alan are each studying one of the animals shown in the table for a science project.
animal study project
animal
speed
type
habitat
elephant
25 mph (running)
mammal
grasslands
sailfish
68 mph (swimming)
fish
oceans
giraffe
32 mph (running)
mammal
grasslands
dolphin
30 mph (swimming)
mammal
oceans
source:

david is studying a mammal, but ping is not. the animal that mandy is studying can be found in the ocean. the animal that alan is studying is slower than the animal that david is studying.
who is studying the dolphin?
a.
ping
b.
mandy
c.
david
d.
alan

Find the missing factor in exponential form 48^2=3^2 • ?

Can somebody me out with this question

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes