Answer:
400 mm
Step-by-step explanation:
8 * 10 = 80
80 * 5 = 400
340 mm
The formula of the surface area of a rectangular prism is SA=2(wl+hl+hw) where w = width, h= height, l = length. Plugging in all the values from the figure -- 2·(5·10+8·10+8·5)= <u><em>340 mm</em></u>
Answer: A
I just answered this question on edg
n = 2
2)
n = -4