Hello from MrBillDoesMath!
Answer:
12 m n^2
Discussion:
3m * 4 * n * n = => 3* 4 = 12
12 m * n * n => as n*n = n^2
Thank you,
MrB
Step-by-step explanation:
3m⋅4⋅n⋅n
Rearranging
3*4*m*n*n
Combine like terms
534.07in squared is what I got for the surface area
she used GF=2BG,but the statement is correct BG=2GF
$33
C = 6(3) + 15
C = 18 + 15
C = 33