A farmer grows squash in his 100 by 100 foot garden. He then sells the crop at the local farmers' market. Two summers ago, he was able to produce and sell 1200 pounds of squash. Last summer, he tried a new fertilizer that promised a 50% increase in yield. He harvested 1900 pounds. Did the fertilizer live up to its promise?

Yes, the fertilizer lived up to its promise

Explanation:

New fertilizer promised 50% increase in yield

Initial yield = 1200 pounds of squash

Expected yield with new fertilizer = 1200 + (1200*0.5) = 1200 + 600 = 1800 pounds

Actual yield = 1900 pounds

Since the actual yield surpassed the promise yield of the fertilizer, it lived up to its promise