For every 4 minutes the machine can sew on 20
buttons. the machine's time log says it ran for 1
hour and 40 minutes. choose any facts that
represent this story.
a. for every 1 minute the machine can sew 5
buttons on.
b. the machine will have sewed on 500 buttons.
c. if minutes is (m) and buttons is (b), then 4m=b
d. if minutes is (m) and buttons is (b), then 5m=b
e. for every 1 button the machine can sew it takes
5 minutes.