There you go. I assumed you know how to derrivate!
Answer:
83%
Step-by-step explanation:
you take 210 - 35 over 210 which is 170 over 210 divide and you get rounded about .83 that as a percent is 83%
Digging -28 would take 16 hours because 14 times 2 equals 28 and 8 times 2 equals 16 so answer is 16
Answer:
14 groups
Step-by-step explanation:
Given


Required
Determine the number of group in the week
To do this, we simply divide the duration by the number half day group.
This gives:


Convert week to days



Convert to multiplication



<em>Hence, there are 14 groups</em>
Zero pair is a pair of numbers whose sum is zero, used to illustrate addition and subtraction problems... with positive and negative integers.
e.g. +1 -1
I hope that this helps
:)