Write the variation, and find the quantity indicated. F varies jointly as q, and q, and inversely as the square of d. If F = 27 when q, = 12, q2 = 12, and d = 4, find F when q, = 10, q2 = 15, and d = 5. The variation is F = (Type k for the variation constant. Do not substitute in values.) The quantity indicated is F = (Simplify your answer.)y varies directly as the square of R. If y is 9 when R is 7, find y when R is 14. a) Write the variation. b) Find y when R is 14. a) How are these two variables related? O A. y=KR2 O B. y= KR O C. k y= P 2 OD. K y= R b) The quantity indicated is