You need to add the table. Try taking a picture and attaching it to the question
Yeah you answered it correctly
Jupiter orbits five times farther from the sun than earth, saturn is twice as far from the sun than jupiter
=1/2
you add both on each side then subtract 2 from you anser
The first property is commutative ( the numbers 38 and 677 are swapped over)
Then we have the associative property ( where the paretheses are moved to get 38 and -38 together)
then the additive inverse ( 38 + (-38) = 0
and finally to get the 677 we use the additive identity property.