Answer:
1/3
Step-by-step explanation:
The number of boys who bought 10 to 20 lunches is 20.
The total number of students is 60.
So the probability is 20/60 = 1/3.
(3×10×8)÷26400= 0.00909090909
hope it helps
It should have 20 vertices, and the name is dodecahedron
Perimeter is adding all 4 sides together:
8 + 8 + 9x + 9x
Simplify by coming like terms to get:
18x + 16
The answer is d. 18x + 16