Answer:
is there a picture you could add i can answer the question more efficiently if you do.(bc i am aloud to edit my responce)thanks!
Step-by-step explanation:
Ya I believe that is the answer. I got the exact same thing.
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Answer:</h2>

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Step-by-step explanation:</h2>
As the question states,
John's brother has Galactosemia which states that his parents were both the carriers.
Therefore, the chances for the John to have the disease is = 2/3
Now,
Martha's great-grandmother also had the disease that means her children definitely carried the disease means probability of 1.
Now, one of those children married with a person.
So,
Probability for the child to have disease will be = 1/2
Now, again the child's child (Martha) probability for having the disease is = 1/2.
Therefore,
<u>The total probability for Martha's first child to be diagnosed with Galactosemia will be,</u>

(Here, we assumed that the child has the disease therefore, the probability was taken to be = 1/4.)
<em><u>Hence, the probability for the first child to have Galactosemia is
</u></em>
Answer:
https://www.scribd.com/document/220049145/treyouna-harris-writing-linear-equations-in-standard-form-google-docs
This might help.
Step-by-step explanation: