Which of the following sentences propositions Please provide

Which of the following sentences propositions? Please provide some explanation of why you think so. It rained yesterday. The last digit of the smallest prime number larger than 100^180 is 1 I want to drink some tea. 6 + 5 - 10

Solution

The definition of a proposition is a statement putting forth an idea, suggestion or plan.

let us go with the question:

in 1 we cannot see any idea, suggestioin or plan.

in 2 also we cannot see as there is just explanation.

in 3 we can see that guy/gal is planning to drink tea.

in 4 it was math

so 3 and 4 can be propositins.