exam Maths Puzzle Numerical Ability

solve the following equation for x: 64=2^3x.
a.x=1
b.x=2
c.x=2.5
d.x=3

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exam Other Question

This is a fraction problem. Please show how you solved it.

1/3 X + 3/4 X = 13

Thank you

Annie I am having major problems with this

(x+5)^2=3