book Maths Puzzle Numerical Ability

I need to solve this log problem:

log( 2, 32)=3x

It is a change in base because it is not log(10). So you have to figure what it equals which I dont know how to do, then you can divide by 3x to solve for x.

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ok, i have an angle here.. with m < QXS = 2x - 2 and m < SXT 4x + 1, and m < QXT = 125, and i have to find m < QXS and the value of x

could you show me the work that you did, an hilary is trying to determine the cost of health care to college students and parents' ability to cover those cost. She assumes that the cost of one year of health for a college s