Answer: addition is associative and also commutative.
(k+l)+m = m+(k+l) commutative
= (m+k)+l associative
Step-by-step explanation:
a+b = b+a is the commutative property of addition.
(a+b)+c = a+(b+c) is associative property of addition
5 times 3 is 15 dollars.
40-15= 25-4=21
21/2=$ 10.50 each
Hope this helps!
So you want the answer right ? if yes then the answer is -87
23 is the answer he answer is 23
