Question

$sqrt{7.5} times sqrt{0.3}$

Answer 1

$sqrt{7.5} times sqrt{0.3} = sqrt{7.5 times 0.3} = sqrt{2.25} = sqrt{ frac{225}{100} } = sqrt{ frac{225 div 25}{100 div 25} } = sqrt{ frac{9}{4} } = frac{3}{2} = 1.5$