Answer:
4.5+2.4=6.9
Step-by-step explanation:
Fraction form: 69/10
Each side area = 54/6 sides = 9
one side is 3 feet so the volume is 3x3x3 = 27 square feet
I can not see the problem.
Related:https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope/v/...
go to this website it will help
