log10(0.1) = -1, so z = -1.

log10(1) = 0, since 10^0 = 1.

log10(100) = log10(10^2) = 2.

log10(1000) = 3, so b = 3.

10x = 10^2, so x = 10.

log10(10^5) = 5.

log10(25) = log10(5^2) = 2 * log10(5) = 2a.

log10(x) = 2 - 1 = 1, so x = 10^1 = 10.

x = 10^-1 = 0.1.

x = 10^2 = 100.

log2(8) = 3, so y = 3.

log2(x) = 7 - log2(8) = 7 - 3 = 4, so x = 2^4 = 16.

x = 2^5 = 32.

log3(27) = 3, since 3^3 = 27.

log3(27) = 3, since 3^3 = 27.

81 = 3^4, so x = 4.

log4(16) = 2, since 4^2 = 16.

64 = 4^3, so x = 3.

log5(125) = log5(5^3) = 3.

343 = 7^3, so x = 3.

log7(49) = 2, since 7^2 = 49.

49 = 7^2, so x = 2.

x = 7^2 = 49.

x = 7^3 = 343.

b^3 = 27, so b = 3.

64 = b^6, so b = 64^(1/6) = 2.

x^2 = 100, so x = 10.

x = 27^(1/3) = 3.

x^2 = 49, so x = 7.

x = 64^(1/6) = 2.