Answer:D
Step-by-step explanation:
She has 77 yellow beads
250-94=156
156-79=77 beads
The expression that could be used to add 3/4+1/6 is 
<h3>How to determine the expression?</h3>
The sum expression is given as:
3/4 + 1/6
Rewrite properly as:

Take the LCM.
The LCM of 4 and 6 is 12.
So, we have:

Hence, the expression that could be used to add 3/4+1/6 is 
Read more about expressions at:
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8 maybe 8/12 or 4/12 maybe because 2 4 (6 8 10 and 12 are all even numbers so 4/12