PLZZ HELP THIS DUE TODAY AND I STRESS OUT PLZZ HELP ME ONLY GIVE ME THE CORRECT ANSWER PLZZZ this due today HELPP DUE IN 30 MIN plzzz

1. The water level in Ricky Lake changes at an average of -7/16 inch every 3 years.
a. Based on the rate above, how much will the water level change after one year? Show your calculations and you can use the vertical number line to help you., using 0 as the original water level.
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b. How much would the water level change over a 7-year period?

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C. When written in decimal form, is your answer to part (b) a repeating decimal or a terminating decimal? Justify your answer using long division.

Show all your work and explanation in order to receive full points.