What is the conjugate of the product (2 - i)(1+2i)?

For how answer my question this will be the last question can you answer in math subject

Asap i need it now choose all the answers that apply. sex-linked disorders affect males more than females affect females more than males can be carried by females, without being expressed are always expressed in males are caused by genes carried on the x and y chromosomes

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !