What is the ratio of 45 second to 2 hours

1:160

Explanation:

1 hour has 60 minute and every minute has 60 seconds

1 hour has 60 *60 seconds

1 hour has 3600 seconds

2 hours has 7200 seconds

45:7200

9:720*2

1:80*2

1:160

22.5 seconds to every hour

Explanation:

Simply, divide 45 seconds by 2 hours and you will get 22.5 seconds. The ratio would be 22.5 seconds to 1 hour

there has only been 12 presidents. the 12th president is/was moon jae-in

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions