Need help with the answer please and thanks

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4