Please help thanks so much

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

Which of the following equations is equivalent to x/3-6/x=1

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.