I would say the answer is : C ) 3 to 5.
Just take away a zero so it'll be 170000 kilometers :)) hope I helped!
Solve the inequality , find the max possible value for the variable.
3t + 1 < t + 12
2t < 11
t < 5.5
t_max = 5.5
For the second question just solve as two separate inequalities
4 +2 < x <= 7 + 2
6 <x <= 9
x in ]6, 9]
Answer: It'll take a patient 49 days to consume 294 pills.
6 × 49 = 294.