By which decimal number should the price of the product be multiplied if it is reduced by

a) [[$ 10 \: \% $]]?



The price must be multiplied by .

b) [[$ 6 \: \% $]]?



The price must be multiplied by .

c) [[$ 80 \: \% $]]?



The price must be multiplied by .

d) [[$ 15 \: \% $]]?



The price must be multiplied by .

e) [[$ 100 \: \% $]]?



The price must be multiplied by .