Answer:
40.5 seconds if it is 1:21 minutes
Step-by-step explanation:
60 seconds per minute plus 21 seconds is 81 seconds. Half of 80 is 40, half of 1 is 0.5. Together it is 40.5 seconds for half of 1:21 minutes.
<span>2153.28 hundreds to be exact or, 2153.</span>
No because you can have negative numbers
Answer:
m = dv
Step-by-step explanation:

What you just do is multiply <em>v</em> on both sides so <em>m</em> can be isolated.
1 3/5 as an improper fraction is 8/5