This project has the following classes:
a. hare: record the current position of a hare and how it moves.
b. tortoise: similar to hare – road: describe a road object in competition.
c. competition: how hare, tortoise, and road work together to simulate the competition process.
d. competitionclient: test the competition class.

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step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

step-by-step explanation: