12/20 can be simplified to 3/5
Answer: NA and Rb and there are 20 protons in calcium!
Step-by-step explanation:
Answer:
W= a number greater then -3= -2,-1,0,1,2,3,4,5,6,7,8,9,10...
Step-by-step explanation:
Answer:
Ladonna: a + c + b
Step-by-step explanation:
-The commutative property in addition states that the order of arrangement of the integers to be added has no effect on their sum such that:

-Since the alphabet follows the order a,b, c....
Only Ladonna rearranged to change this order to show the commutative property.
-Hence, Ladonna wrote the expression correctly.
*The commutative property should not be confused with the associative property.
-The latter allows you to change the order and terms within the closed parentheses while retaining the answer.