15+(-15)=0 I hope this helps
Answer:
r - (4 + p)
Step-by-step explanation:
{that's how you write it if that's what you are asking}
Answer:
there would be 55 different combinations if there were 9 painting and there would be 49 different combinations if there were 8 paintings. i don't know what the first question means
Answer:
95 minutes/1 hour and 35 minutes.
Step-by-step explanation:
Since there are 60 minutes in a hour you could convert it. Or you could just subtract 550 minutes by 415 minutes and get 95 minutes which is also 1 hour and 35 minutes.
Hope this helps
:)