Hi there!
So first you need to know that there are 60 seconds in 1 minute.
So 3 and 1/2 minutes would be 3 times 60 seconds plus 30 seconds (1/2 minute is 30 seconds because 60 ÷ 2 = 30) :
(3 × 60) + 30 = Number of seconds
180 + 30 = Number of seconds
210 = Number of seconds → ANSWER
There you go! I really hope this helped, if there's anything just let me know! :)
Answer:
210 = Number of seconds → ANSWER
Step-by-step explanation:
Hope this helps!
Have a great day! :)