How do i get the answer for this limit limit x to 0 (4^2x-1)

without using direct substitution my work so far is limit x to 0 = (4^2x-1) = (4^2x/4^-1) is it correct?

0.5 (x+1.6) + 1.4 (3x+2.4) = 9.8

If the population of a certain city increased 25% in two years, the nee population was what pecent of the old?

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Turn 18 2/5 into a decimal

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What is 2.25 as a fraction

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