PSAT 8/9 Math Practice Test

Interpreting a base-10 logarithm: log10 t = 2 means t is the base, 10, raised to the power 2. So t = 10^2 = 100. This checks because log10 100 = 2. The other values give different logs: log10 10 = 1, log10 2 ≈ 0.301, and log10 0.01 = -2, so none of them match 2.