The answer would be C.
2/3n - 9 > 25
"Of" means multiplication.
"Less" means subtraction.
"Greater than" is this symbol >.
10+25+15=50
25/50
I can be simplified.
The greatest common factor is 25.
25/25=1
50/25=2
So the answer is 1/2.
Diameter = 2.75
Radius(p) = 2.75/2
Answer 1.375