Solve the problem and enter your solution for the variable below. do not
include units in your answer.
the water level of a pond drops an inch every 7 days
without rain. how many days will it take the pond's water
level to drop by 12 inches?
.
.
answer here
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If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

Susie ran a race. she ran 55 miles an hour, and the race took her tt hours to complete.

This graph represents four ecosystems. each ecosystem has a different number of species, adding to its biodiversity. different colors represent different species. which statements correctly summarize the data depicted by the graph? 1. ecosystem d has more biodiversity than ecosystem c. 2. ecosystem b has more biodiversity than all the other ecosystems. 3. ecosystem a has more biodiversity than ecosystem b but less biodiversity than ecosystem c. 4. ecosystem b has more biodiversity than ecosystems c and d but less biodiversity than ecosystem a. 5. ecosystem a has more biodiversity than ecosystem c but less biodiversity than ecosystem b.