I mean he did everything right except he kept going past 5x2. I think that's the only mistake.
Hope I helped! :) (would you mind giving Brainliest answer? I'm trying to increase my title and I would really appreciate it!)
Answer:
312 inches
Step-by-step explanation:
Surface Area = 2×(8×12 + 8×3 + 12×3) = 312 inches
Answer:
9/11
Step-by-step explanation:
Answer:
There are 192 window panes in total.
Step-by-step explanation:
Since each window has four window panes across and four window panes down,the number of panes per window is:

The total number of window panes in 'n' windows is:

With n = 12 windows, the expression that describes the total number of window panes is:

There are 192 window panes in total.