In a shopping mall, shoppers who use a reward points card get a 10% discount on every transaction. if the average transaction is $450 for customers with these cards, and $500 for other customers, what happens to the expected value of a transaction?

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.

29 is the correct answer

step-by-step explanation: