Can someone evaluate this problem 3 x 5 + 2 x 8 + 2

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

Need plz been trying to do it for a long time and still haven’t succeeded

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.