What is the exact value of sin(105°)?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

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?

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?