We verify: a < b + c; b < a + c; c < a + b;
Only a = 9, b = 12, c = 7 verify the conditions: 9 < 19; 12 < 16; 7 < 21;
The correct answer is D.
Step-by-step explanation:
215.92 dollars is the answer
the answer would be c: ax + b = ax + c
step-by-step explanation: