The pedigree chart shows the inheritance of an x-linked recessive genetic trait. Fill in the dashed boxes to correctly complete the chart.

Iknow this isn't a question, but is there someway to ask a question under public safety or is there no category for it? i don't know if i'm overlooking it or not.

According to the passage weisers mother could be blamed for

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?