exam Maths Puzzle Numerical Ability

Solve for 'x':
a) 3^x=81
b) 3^x=88
c) 5^2x=705
d) (0.5)(^-3x+1)=4000

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exam Other Question

between the years of 1990 and 2000, the annual profit of the alpha company increased by about $70,000 per year. in 1998, the company had an annual profit (P) for the alpha company p(x)=6x^4+22x^3+11x^2-38x-40