If f(x) = 4x - 7 and g(x) = 2x + 4, evaluate fx) + g(x) for x = -3. A-52
B --21
C-22
D-15

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected