Which set shows a subset of the set of natural numbers? A
B.
C.
{19, 22, 34, 56 )
{16.9, 34.5, 67.2, 78.3}
{0, 22, 43, 78)
22.
-1
100)
7
D.​

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

Afootball is throw by a quarterback to a receiver