URGENT: find the domain and range of (x^2/25)-(y^2/4)=1 please show all steps

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle

What number is 7 units left of -15?