C, D, and E are most likely to be right. Its either all of them, one of them, or two of them. A is impossible to use in the equation and if you use b, you get 45.5.
Answer:
d
Step-by-step explanation:
x<9+7, and x+7>9
solve
x<16
x>2
2<x<16
A = pi × r²
A = pi × 13²
A = 530.93 km²
Answer:(A²-B²) = (A-B)² + 2AB
