Try these dimensional analysis problems. Note that one tonne (or metric ton) is equal to 1,000 kilograms. 1. The amount of mismanaged plastic globally is 31.9 million tonnes per year. If the US contributes .022 million tonnes per month, what percentage of the global mismanaged plastic comes from the US? Show your work.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

substitution is the answer in this case

i am sorry but i need more information and a picture.