The answer is c had it before
Paula tossed the football over the fence.
The focus is the place inside Earth's crust where an earthquake originates. The point on the Earth's surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions.
8 1/5 = 8.2 -2
=6.2 * 4^3 (4*4*4)
=396.8 + 24.6
= 421.4