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Forest lost to logging: 0.30 × 4800 = <<0.30*4800=1440>>1440 acres.
Remaining forest after logging: 4800 – 1440 = <<4800-1440=3360>>3360 acres.
Half of this (672 acres) was reforested by 1900.
New forest area: 3360 + 672 = <<3360+672=4032>>4032 acres.
Farmland area (15% of 12,000) = 0.15 × 12000 = <<0.15*12000=1800>>1800 acres, not affecting forest count.
Total forested in 1900: 4032 acres.
#### 4032
An ichthyologist tracks clownfish populations on a coral reef. In 2020, the population was 12,000. Due to rising sea temperatures, the population declines by 12% annually. What will the population be in 2025, assuming no recovery?
Annual decay factor: 1 – 0.12 = 0.88.
Number of years: 2025 – 2020 = 5.