Respuesta :

Answer:

[tex]\bold{\boxed{R Intersection S = {20} }}[/tex]

Step-by-step explanation:

The intersection in a sample is the reoccurring numbers that are present.

Let's list the two samples:

R = {10, 15, 20}

S = {20, 25}

The number 20 is present in both samples, so -

R Intersection S = {20} !

Hope it helps! :)