book Maths Puzzle Numerical Ability

what is the lateral and surface area of a regular pyramid with legs the equal 5 and a one base side that equals 6

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book Other Question

I need to find the value of a variable. I am very confused. I think if I had the proper steps that I could solve the problems. can you help me with the proper steps to get to the answer. 6x-9/x-2 + y/5 x=1 y= 10

Thanks! Ln(x)+Ln(x-2)=1