Answer:
104 and 624
Step-by-step explanation:
104x5=520
Answer:

Step-by-step explanation:
Hi there!

Replace all x's with a-1:

I hope this helps!
Answer:
Step-by-step explanation:
13 , 52
Here 13 is a prime number. So, check if 52 is a multiple of 13.
Yes, 13*4 = 52
LCM = 52

For each time period, each time "t" increases by one, the population will be multiplied by 4.