No it is not a function. You have to be able to write y=mx+b
Answer:

Step-by-step explanation:
Given
f(t) = Population of females
g(t) = Population of people
Required
Determine the population of males
Represent the required population with h(t)
With the assumption that, one can either be male or female (but not both), the relationship between f(t), g(t) ang h(t) is:

i.e.

Make h(t) the subject in 

What’s the question is there supposed to be a picture because their isn’t
Answer:

Step-by-step explanation:
First get the l by finding the square root of the area
= 5cm
since 1cm = 5ft
what about 5cm =?
(5cm×5ft)/1cm
l=25ft
area of the actual floor is l × l

which is 
D.Php 36x because 1 dozen is = 12 pieces so if there’s 3 dozen of apple it would be 12 x 3 the answer which is 36