Mmm i don’t know sorry ok
I'd go with the first option (2,-2.5) because the answers you get from solving the equation is
x = 9/5
y = -14/5
The x would round up to 2 and the y would round down to -2.5
1. The surface area of a cone S is S=

, where r is the radius of the base and l is the slant height.
2. The slant height l is found as follows:



3.


4. The answer is C
White ball- 4 , read ball- 6, green ball- 2