If there is 20 pencils there will be 5 erasers 20:5
1400 days = 56 days... 100 over 4 * 4/100*d=100 over 4 * 56 xd= 5600 over 4 d = 1400
I think it’s A but I’m not to sure
D. You multiply all measurements together. The thickness has nothing to do with how much air will be inside. (: hope this helped ya :)
7^5 is your answer
Hope this helps
