(a) \(0.65\)
\(0.65= 0.65\times 100\%\)
= \(\frac{65\times100}{100}\%\)
= \(65\%\)
(b) \(2.1\)
\(2.1=2.1\times100\%\)
= \(\frac{21\times100}{10}\%\)
= \(210\%\)
(c) \(0.02\)
\(0.02=0.02\times100\%\)
= \(\frac{2\times100}{100}\%\)
= \(2\%\)
(d) \(12.35\)
\(12.35=12.35\times100\%\)
= \(\frac{1235\times100}{100}\%\)
= \(1235\%\)
Convert the given fractional numbers to per cents.

Using laws of exponents, simplify and write the answer in exponential form:
(i) 32 × 34 × 38 (ii) 615 ÷ 610 (iii) a3 × a2 (iv) 7x×72 (v) (52) ÷ 53 (vi) 25 × 55 (vii) a4 × b4 (viii) (34)3(ix) (220 ÷ 215)×23 (x) 8t ÷ 82