10 facts about bonds help pli​

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?