It’s the last one. Six.
Explanation: 6*6 = 36 - 3 = 33 > 21
Answer: 15
Explanation: quick maths in the brain
Hello :) please refer to the pic below!
Answer:
If x=0 then the answer is 20.
Step-by-step explanation:
Answer
Find out the conversion factor for seconds to minutes and convert 135 seconds to minutes.
To prove
1 minute = 60 second
for seconds to minutes.

Therefore the conversion factor for seconds to minutes be

Now convert 135 seconds to minutes.

= 2.25 minutes
Hence proved