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?
a. they have slopes that are opposite reciprocals of 1 and -1 and are therefore perpendicular
b. they have the same slope of 1 and are therefore parallel
c. they have slopes that are opposite reciprocals of 0 and undefined and are therefore perpendicular
d. they have the same slope of -1 and are therefore parallel

  D. They have the same slope of -1 and are therefore parallel

Step-by-step explanation:

In the linear equation ...

   ax + by = c

the slope of the line is m = -a/b. For the given equations, the slopes are ...

  x+y = 7   ⇒   m = -1/1 = -1

  x+y = 3   ⇒   m = -1/1 = -1

The slopes are the same, and both slopes are -1, so the lines are parallel.

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

answer: 323 is how many she has ☃☃⛄❄

step-by-step explanation: