Question

Which of the following pairs of expressions is equivalent?(1 point)
Responses

5+h6
and 65+h

Start Fraction 5 plus h over 6 End Fraction and Start Fraction 6 over 5 plus h End Fraction

13−n−8
and n−8+13

13 minus n minus 8 and n minus 8 plus 13

(r+2)+9
and 9+(r+2)

left parenthesis r plus 2 right parenthesis plus 9 and 9 plus left parenthesis r plus 2 right parenthesis

p⋅3+4
and p⋅4+3

Answer 1

(r+2)+9 and 9+(r+2)

Reason: Addition is commutative/associative, so the expressions are equal for all r.