If (149)0.28 = a and (149)0.48 = b, and a2 = bc, then find the value of c.

Let x be the largest and y be the smallest values among 4√6, √2, and 3√4. What is the value of x3 + y2x3 - y2?

If 7√3√10 + √3 - 3√2√15 + 3√2 = a + b√30, then the value of √(8b - a) is:

Simplify the following expression: √(11 + 2√10) - √(11 - 2√10)

The simplified form of 3√15 × 2√55√3 is:

Arrangement of 3√5, √2, and 4√6 in ascending order is: