Luis' father is four times as old as luis. his grandfather is twenty years older than his father. the sum of their three ages is 110. how old is luis father?

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: