14b + 6b - 12
(14b + 6b) - 12 collect like terms
20b - 12 << your answer
hope this helps, God bless!
Step-by-step explanation:
I just learned this in class lol
Find the area of all the sides.
This cubiod has 6 sides.
6 x 5 = 30
6 x 5 = 30
4 x 5 = 20
4 x 5 = 20
6 x 4 = 24
6 x 4 = 24
30 + 30 + 20 + 20 + 24 + 24 = 148
Thefore, the surface area of this cuboid is 148.
Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D
Answer:
10
Step-by-step explanation:
3-21-4+32
=-18-4+32
=-22+32
=10