Zack needs $299.99 to buy the new bike he wants. He has saved $150 so far toward the new bike. From this week on, he will save $12.50 per week toward the new bike. Ten weeks from now, how much more money will he still need to save to buy the bike?

In 10 weeks, Zack will save 10 × $12.50 = $125. Adding the $150 he has already saved gives him $275. Subtract that from the bike’s $299.99 price: $299.99 − $275 = $24.99, so he will still need $24.99.

AI-written and checked against the verified answer.