Final answer:
Due to missing information for week 2 of Lincoln's earnings, we cannot establish a pattern to calculate his total earnings for week 6. The correct answer is 'Insufficient information to determine'.
The correct option is D.
Step-by-step explanation:
To determine Lincoln's total earnings at week 6, we need to establish a pattern from the given data for week 1 to week 4. However, since week 2 is missing, we do not have sufficient information to accurately predict Lincoln's earnings for week 6.
The weeks given are:
Week 1: $120
Week 2: Information missing
Week 3: $240
Week 4: $300
Without the earnings for week 2, we cannot determine if his earnings are increasing at a steady rate, or if there is another pattern to be identified.
Thus, the correct answer will be:
D) Insufficient information to determine