exam Maths Puzzle Numerical Ability

Please help me solve for "X":
a) 64^(x-2)=16^(1/3)
b) (x+3)(^2/3)=125(^2/9) ( I think it is 2)
c) logbasex 4=2 (I am thinking +&- 2 ???)

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exam Other Question

I have a worded question which has left me bambozelled. As I am unable to get the words into an equation. Any help would be greatly appreciated and is as follows.
On a calm day it Mr. Shelton plans on making the largest German underwater basket...in German. He needs 174 yds of material total to accomplish his fiendish plan. If he uses 2 yd. pieces and 3yd. p