Answer: The sentences are A) Boston is the capital of Massachusetts, B) Miami is the capital of Florida, C) 2+3=5, D) 5+7=10
A) Boston is the capital of Massachusetts truth value is T
B) Miami is the capital of Florida truth value is F
C) 2+3= 5 truth value is T
D)5+7=10 truth value is F
Explanation: Proposition is a declarative sentence which have a truth value which could be true (denoted with T or 1) or false (denoted with F or 0)
Example A) Boston is the capital of Massachusetts truth value is T because truly Boston is actually the capital of Massachusetts
Example B) Miami is the capital of Florida truth value is F because Tallahassee is the capital of Florida.
C) 2+3=5 truth value is T because when you add 2 with 3 it gives 5
D) 5+7=10 truth value is F because when you add 5+7 it gives 12, not 10.