Mrs. kosko left $19.47 on the table in a restaurant after receiving the bill for $16.50. if there was no tax, what percent did she tip? (a) 15% (b) 13% (c) 17% (d) 18%

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

step-by-step explanation:

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