Answer:
identity property
Step-by-step explanation:
The sum of 0 and any number is that number is the identity property of addition
a+0=a
15+0=15
Using the distance formula we can determine the perimeter of PQR.
Distance formula: d=√(x-x1)^2+(y-y1)^2
distance of PR: √(-2+2)^2+(9+3)^2= 12
distance of QR: √(7+2)^2+(-3+3)^2=9
distance of PQ: √(7+2)^2+(-3-9)^2= 15
Perimeter: 12+9+15=36
Answer:
a and c
Step-by-step explanation:
it is the answer for your question