Is this right
To find the volume of the rectangular prism you have to do l x w x h so 5 x 1 x 3.5 to get 17.5.
Then to find the surface area of the rectangular prism do 2(LxW) + 2(LxH) + 2(WxH) so 2(5x1) + 2(5x3.5) + 2(1x3.5) add it to get 10 + 35 + 7 which equals 52.