The correct answer is the third one.
However, i would suggest you to remember the following simple rule:
The height (h) of the water in cm for d days is given by the equation h(d) = -0.9d + 1200
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Let h represent the height of the swimming pool after d days, the water evaporates 0.9 cm in height each day. If the pool water starts at 1200 cm hence:
h(d) = -0.9d + 1200
The height (h) of the water in cm for d days is given by the equation h(d) = -0.9d + 1200
Find out more on equation at: brainly.com/question/2972832
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26.04 I think I am not really sure what the question is asking