The set of all natural numbers less than 15 write set build notation

{x : x Σ N, x<15}

Step-by-step explanation:

Set of all natural number less than 14 = {x : x Σ N, x<15}

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )