Answer:
Sum of 2 no. 120
Let second no. be x
Therefore, first no. =x+5
Therrfore,third no. =3x
Thetefore,x+5+x+3x=120
5x+5=120
5x=115
x=23.
Therefore, 1st no.=28
Second=23
and third=69
That is correct, however, you need to keep in mind that each bacteria created will multiply the same way the original does, so you have exponential growth
Answer: 50 minutes
Change 1 hour 45 minutes into minutes by adding 60 to 45.
60 + 45 = 105
Shes watched 55 minutes so we subtract that from 100 to get our answer
105 - 55 = 50
872 times 3=2616, just try to use a Calculator if you can