Answer:
a) 4*x + 50 ≤ 100 Â
b) Domain  x (0 ; 12 )   Range  f(x)  ( 50  ; 98 )
Step-by-step explanation:
The constraint is:
4*x + 50 ≤ 100          where "x" is the number of persons
b) Domain for x
x = 0   up to  x = 12      x (0 ; 12 )
c) Range for f(x)
f(x) = 4*x + 50
f(0) Â = 4*0 + 50 Â Â Â f(0) = Â 50
f(12) = 4*12 + 50 Â Â f (12) = Â 98
f(x) Â ( 50 Â ; 98 )