Help I need help with this

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

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.