Which equation is an identity?

a. 6m - 6 = 7m + 9 - m
b. 3w + 8 - w = 4w - 2(w - 4)
c. 8 - (6v + 7) = -6v - 1
d. 5y+5 = 5y-6

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?