<span>The success of the Roman army is mainly attributed to a well-trained army as well as meticulous planning prior to each assault. The Roman army also used a highly successful attack technique that utilized a combination of long and short range attacks utilizing legionnaires wielding both a pila and gladius</span>
Answer:
continental-continental convergent i think
A because 60 divided by 20 is 3 so it is going through 3 stages of half life. 40/2=20 which is one half life then 20/2=10 which is the second half life then 10/2=5 which is the 3rd and final half life
