<u>Answer:</u>
<em>During</em><em> light downpour or day off,</em><em> teams can work; be that as it may, at whatever point the downpour or snow is </em><em>influencing perceivability</em><em> or there is lightning, a field group ought not be working. </em>
<u>Explanation:</u>
A <em>common problem in surveying</em> is to determine the altitudes of a series of points with respect to some reference point.
The <em>measurements are subject to error</em>, so more observations are taken than are strictly necessary to determine the altitudes, and the resulting over determined system is solved in the <em>least-squares sense to smooth out errors. </em>
The correct answer is agents and brokers. Agents and brokers are considered to be a non-manufacturing traders by which they sell, buy, or even facilitate the traded products of which the goods that they sell are not theirs or they didn't actually owned it.
It depends on the contract. But it's mostly what seller do ...
The number of available colors is n = 7.
The number of colors that can be selected at a time among the 7 colors is r = 5.
This means that the number of selections of 5 colors from 7 colors at a time is ₇C₅.
By definition,

Answer: The number of color groupings is 21.