The universal set is the set of rational numbers. s is the set of integers.
which represents sº?
{x|x is a real number}
{x|x is a rational number}
{x|x is a rational positive number
{x|x is a rational non-integer;

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step-by-step explanation:

the answer is 1 becuz if it were 1.0 that would rip apart the entire so ya. : )

~potato.

copyright potato 2019.

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.