Easy Work! Please look at the picture and yes it’s easy for other people but not for me for people asking please and thank you.

The formula is area= 1/2bh
So your gonna multiple 1/2 to your base then multiple your height for number one it would go like this

1/2 • b(22) =11 • h(3) which is 33 hope this helps

That. you would have multiple

Yes. there is a constant ratio of number of calories to gram of protein.12/3=24/4=32/8=44/11=4