(answer ) a: john starts running and then slows down to a walk b: john starts walking and then speeds up to a run c: john starts running, then walks, then runs again d: john starts walking, then runs, then walks again

a: John starts running and then slows down to a walk

Step-by-step explanation:

A horizontal segment means a constant speed.

The first horizontal segment is higher than the second horizontal segment.

The first constant speed is higher than the second constant speed.

The diagonal segment going down to the right means that the speed is becoming lower.

a: John starts running and then slows down to a walk

£56

step-by-step explanation:

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

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