Ayuda cual es el valor numerico de -11ab?

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

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?