Will give a brainliest if ur correct !

find the domain of the following function.

f(x)= 3 if -4 ≤ x < 2 and 2x if 2 ≤ x ≤ 10

a.
all real numbers
b.
all real numbers except for 2
c.
-∞ < x ≤ 10
d.
-4 ≤ x ≤ 10

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b