Answer:
3n+2
Step-by-step explanation:
-n+(-4)-(-4n)+6
Subtracting a negative is like adding
-n+(-4)+(4n)+6
Combine like terms
-n +4n -4 +6
3n +2
3n+2
Answer:
m = .451
Step-by-step explanation:
3.3 + 10m = 7.81
Subtract 3.3 from each side
3.3-3.3 + 10m = 7.81-3.3
10 m =4.51
Divide each side by 10
10m/10 = 4.51/10
m = .451
Surface area is 1/2 pl plus B so find the perimeter of the bottom, times it by 32, and find the area of the base