Answer:
300.57 m
Step-by-step explanation:
The answer to your question would be B.
I hope this helped:D
Surface Area of a cylinder 2(π•r²)+(2π•r)•h
So
If the diameter is 8 then the radius is 4. the height is 5.
so you have, 2(3.14•4²)+(2•3.14•4)•5
solve. PEMDAS
Parentheses & Exponents first.
2(3.14•16)+(2•3.14•4)•5
2(50.24)+(6.28•4)•5
2(50.24)+(25.12)•5
Multiplication & Division second (left to right)
100.48+125.6
Add & Subtract (left to right)
226.08cm
How ever many times it goes into 100
She has 4 groups all together. 3 groups with ten rocks each and 1 group with 8 rocks(8/10).