The equation 1/7n−4n=1/3n is true for all values of n where n ≠ 0. Is the equation an identity? A. No; it is not true for all values of n.
B. No; the equation has no solution.
C. Yes; it is true for most values of n.
D. Yes; it is true for every possible value of n.

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.