Nathan and steven stacked boxes on a shelf. nathan lifted 13 boxes and steven lifted 15 boxes. the boxes that nathan lifted each weighed 12 lb more than the boxes steven lifted. determine the expression which represents the total number of pounds nathan lifted. let s represent the weight of the boxes that steven lifted.

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.