exam Maths Puzzle Numerical Ability

my worksheet says to solve this problem, could you please help me? thank you

3^x=27^(x+1)

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exam Other Question

Can someone help me with this problem?

I need to find the mode of this set of numbers:
9, 8, 10, 9, 9, 10, 8

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Sher Find an equation for the line with y-intercept 3 that is perpendicular to the line y=2/3x-4.