Answer:
10.5 is really 10.50 the . 5 is half the whole one unit, like 50 cents is half a dollar
-3
When there are two negative be added your answer will always be negative. In this case add the ones(2) and then add the 1/2s(1) and then add the two. For this you’ll get 3 but just add the negative sign.
Your answer is 3/5, the picture below shows how sin cos tan work!
