F(x) = x
g(x) = 1
what is the domain of (fg) (x)?
x≠0

x≠-1

all real numbers

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Which strategy is used by public health to reduce the incidence of food poisoning?