[tex]d)(0.2(3) - 0.1(3)) \div 0.01 {}^{2} = 3(0.2 - 0.1) \div ( \frac{1}{100} ) {}^{2} = 3 \times 0.1 \div \frac{1}{10000} = 3 \times \frac{1}{10} \div{10000} = 3 \times 10000 = 30000 [/tex]
