x = 150 did this help you?
To find the surface area of the rectangular prism you do.
2(lw + lh + wh).
2((26*18) + (26*8) + (18*8))
2(468 + 208 + 144)
2* 820
the answer is 1640cm^2
20 7
----- = ------
100 x
100 x 7 = 700
700/20 = 35
X = 35
B
Explanation: I guessed and it was right
The answer is C to this question