Answer:
Yes, he will have $309 during the third week.
Step-by-step explanation:
The first week, he saved $70, then spent $7, subtracting to make $63 left. The next week, he saved $103, then spent $6, subtracting again to leave him with $97. $70 + $97 = $167, which is the current total amount he now has so far. Finally, with $150 earned the third week, but he spends $8 and has $142 leftover, $167 + $142 = $309. Meaning he will exceed by $9 more and will have enough money.