which expression has a coefficient of positive 1 for the term n?
a) 5n2 + 6n - 1
b) 2n2 - 5n + 1
c) 3n2 + n - 2
d) 4n2 - n + 9

Opt C.

Step-by-step explanation:

The coefficient is a numerical constant placed before the variable, very often the coefficient stands out by its own (coefficient of n in opts A, B, D), but sometimes is hidden from view, because it is a mathematical convention not to show it, this happens when dealing with 0 and with 1,

as you can see in Opt C, the coefficient is not shown, but is there and it is hidden from view

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!