Define ratio to show its scientific meaning. Then use it in a

sentence as a noun.

i believe it is b. what was the cause of the big bang

hope this !

measure their densities same density, same sub

resonant frequency

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.