In a building there are 14 pillars. The radius of each pillar is 21 cm and height 3.5 m. Find the cost of painting the curved surface area of all pillars at the rate of 12 per m². plz correct answer.​

If 3x+8=3x+8 is it one solution or no solution

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.