brainly won't let me type my answer out so i'll just put it in the comments, sorry if it's inconvenient.
Ok so
Q.1=B
Q.2=B
Q.3(a)=(d-45)+m+65
(b)=d+m+20
Https://www.youtube.com/watch?v=JnCYomYzJSw
this a youtube video that helped me when i needed to do it
the set of all values that a function will return as outputs
