3(10g + 6y)
3(10g) +3 (6y)
30g + 18y
option 2
Answer:
The formula A=12bh is used to find the area of the top and bases triangular faces, A= area, b= base, and h= height. The formula A=lw is used to find the area of the three retangular side faces, A= area, l= lenght, and w= width
Step-by-step explanation:
72 is the denominator because 24 multiplied by 3 is 72 and 18 multiplied by 4 is 72
