One benefit of the si system is that it is

One benefit of the SI system is that it is 'based on multiples of 10'.

Explanation:

One main benefit of the SI system is that it is based on multiples of 10. Which means that conversion to similar units is easier.

For example, you just need to multiply or divide by 10 to change from grams to kilograms and vice versa.

Also, the standard units defined by the International System of Units are consistent around the world which makes it easier to comprehend and communicate using them.

+15-35=-20

going in opposite directions

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.