The cost of a movie theater ticket is given by the expression 10a, where a is the number of people in the theater. the cost of a drink at the theater is given by the expression 5a. which is the expression if every person buys a drink? a-5a+10 b-25a c-15a d-10a+5

c. 15a

explanation: if a movie ticket is 10 per person and a drink is 5 per person and everyone buys a drink that would mean each person would be spending 15 and the # of people is unknown so it would be 15a.

should be c. 15a because 10+5=15 and the # of people in unknown so the answer should be 15a

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.

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step-by-step explanation:

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