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

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

What is the relationship between all triangles that can be drawn given the same three angles

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.