How do I go about solving number 2 question.Its not like the other questions i did before.

I hope this helps; depending on the gas, when heated will began to cause its particles to vibrate very rapidly. Meaning the container will began to expand causing it to treble due to so much pressure being built up.

Hope this helps out! :)

No.

Step-by-step explanation:

In order to find the answer, you have to make the rates as simple as they get: In other words, you have to make it so that the rate has one on each side. Like this:

40:2

20:1

57:3

19:1

As you can see, they don't have the same numbers once their simplified. Which means that they can't be proportional. So, In this specific problem, you can do one more pushup in one minute than your friend can do.

Have a good day and good luck!