7. A toy is made up of cylindrical rings stacked
on a base, as shown in the diagram. The
diameter of Ring 1 is 87% of the diameter of the
base. For Ring 2 through Ring 7, the diameter
of each ring is 87% of the diameter of the ring
directly below it.
3
6
2
Base
The diameter of the base is 5 inches. Which
function can be used to find the diameter in
inches of Ringr, where1≤r≤7 ?
F d(r) = 5(0.87)
G_d(r) = 0.87(r-5)
H_ d(r) = 0.87(5)
J d(r) = 5(r-0.87)
