Ineed asap no joking around and pleas explain, all of them

yes

yes

no

step-by-step explanation:

have a nice day :

2.5 is like 25 in the sebse that 5 can go into 25.

.02 is like 2 in the sense that 2 can go into 1.8.

.4 cant go into 3.3 cause 4 cant go into 33

answer: 43.18

step-by-step explanation: divide the diameter and then multiply it by 3.14 and then multiply it to the second power