Answer:
Step-by-step explanation:
4x+27
---- ----
4 4
x=6.75 or x=7
The expression that can be used is 3.14 (6x4+6^2)
The surface area is 188.4
Answer:
n = 55/8
Step-by-step explanation:

Answer:
D) 9 postcards with 2 shells each.
Explanation:
9 x 2 = 18
Therefore, 9 postcards with 2 shells each is the correct answer.
Please give brainliest.