Repeated multiplication

Power

If multiplying something with like bases, add the exponents together.
300 is the LCM of 25 and 30 =)
8:5:3
8 blue marbles to 5 red marbles to 3 green marbles
There are 3 green marbles because the total of 16 marbles minus the blue and red marbles leave 3 marbles left.
1 + i? I think. Because they are both negative because you aren't actually subtracting just adding a negative