The following examples illustrate the commutative property of addition. 7 + 8 + 3 = 7 + 3 + 8 4.6 + 11.4 = 11.4 + 4.6 study the examples, then choose the statement that best describes the property. a + b = a – b a + (b + c) = (a + b) + c a + b = a + c a + b = b + a

A+b=b+a because communitive is he move stuff around and the only difference is a and b being moved around.

a + b = b + a

Step-by-step explanation:

The commutative property of addition allows us to "switch" values around an addition sign.

The first choice is a+b = a-b.  The operation is changed; the problem is not just flipped around.  This is not the commutative property.

The second choice is a+(b+c) = (a+b)+c.  In this problem, the parentheses are switched; this is an example of the associative property, not the commutative property.

The third choice is a+b = a+c.  The values that are added are changed, not flipped; this is not the commutative property.

The last choice is a+b = b+a.  In this equation, the values are flipped around the addition symbol; this is the commutative property.

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.