Which equation has a solution of all real numbers?

a. 5k - (6k - 18) = 9 - k + 17

b. 14 - 5 (y + 10) = 4 - 8 (y + 5)

c. 6 (-2w - 3) = -4 (3w + 7) + 10

d. 7m - 2 (2m + 3) = 8 - (3m - 10)

Give me the equations of two lines that have the same slope but are not parallel.

What is the radius of the cone in the diagram? round your answer to the nearest whole number

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle