Answer:
the unknown factor should be the 6(which it should be stated in the question) like if ur trying to solve for the amount of plates in each pile, then the unknown factor would mean that its the amount of plates :p
Step-by-step explanation:
x+y=-1
Give Branliest PLz
Answer is 15
Half of 40 is 20 cause 40/2=20
Five less than 20 is 20-5 which= 15
So ur answer is 15
A square
