List all of the number sets that contain the number 15.
a.
rational numbers and integers
b.
rational numbers, integers, and natural numbers
c.
rational numbers, integers, and whole numbers
d.
rational numbers, integers, natural numbers, and whole numbers
select the best answer from the choices provided

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d