Which of these fractions represent the correct conversion factors (ratios)?

a. 1mm/10cm
b. 1000m/1km
c. 1m/100cm
d. 10km/1m
e. 1cm/10cm
f. 10cm/1m
g. 1m/1000mm

p. s. you can choose more than one answer.
you!

b. 1000m/1km

c. 1m/100cm

g. 1m/1000mm

Explanation:

To solve this you just have to keep in mind the conversion tables that meters have and that is given by the latin pre-fixes that are involved in their names:

1 meter.

1 kilo-meter, kilo means a thousand, so a kilo-meter would be a thousand meters.

1 mili-meter, mili means diveded by thousand, that means that there are a thousand mili-meters in a meter.

1 centi-meter, centi means divided by a hundred, so there are a hundred centi-meters in a meter.

That is why those are the correct options.

i believe the answer is a