Rochelle bought 20 trading cards, of which 13 were sport cards. write the decimal that shows what portion of the cards were sports cards

0.65

13/20=.65

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

d. you cannot tell because there are no values shown.