Answer:
20 seconds
Step-by-step explanation:
The least common multiple of 4 and 5 is 20. So the two lights will blink at the same time every 20 seconds.
I'm sorry, but I don't understand ;-;
I think its A.4/5 because if you add all the chips it is 10, 4 chips are blue he picks 2 so i want to say it will end up as 8/10 and another frashion for 8/10 are 4/5 im not 100% shore but hope that helps
Answer:
summation
Step-by-step explanation:
This symbol is the summation symbol
It means to sum what comes after it