Answer:
1 Coin is a quarter and thats 25c then another coin is also a quarter and thats 50c so he has 3 pennis which makes it 5 coins and that gives you 53c
Step-by-step explanation:
There is no prism so please add a picture and ill edit the answer to the answer
The average atomic mass is 6.92X
How do we compute the average atomic mass?
In a bid to calculate the average atomic mass, we multiply the fraction of each isotope by the mass number , then add them together.
This is more like weighted average, as shown below:
average atomic mass=(mass number of first isotope*fraction)+(mass number of second isotope*fraction)
average atomic mass=(6X*7.59%)+(7X*92.41%)
average atomic mass= 6.92X
Find out more about average atomic mass on:brainly.com/question/13299770
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B is bbbbbbbbbbbbbbbbbbbbbbbb
Your answer is 30.31
Hope this helps!