Answer:3
Explanation:
Let Tamar did the job for x hours,
Since, her charges for 1 hour = $ 8,
⇒ Her charge for x hours = 8x,
Also, the bus fare = $ 6,
hence, her total charge = Bus fare + Her charges for x hours
= 6 + 8x,
If the total charge is at least $30,
⇒ 6 + 8x ≥ 30
⇒ 8x ≥ 24
⇒ x ≥ 3
Thus, the minimum number of hours for a babysitting job she would accept = 3 hours.