Find the constant of proportionality for the ratio of cost
to number of bananas from the table.

Constant of proportionality = 1/4 or 0.25.

Step-by-step explanation:

Cost / Number of bananas

= 0.5 / 2 = 1/4

= 1 / 4     = 1/4

= 1.5 / 6 = 1/4

cost = 1/4 * number of bananas

0.25

Step-by-step explanation:

take0.50 and dived it by 2

10

step-by-step explanation:

7+3=10

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)