She added 64 grams which is 34 grams less than Wat was needed
In the box where 'Tails' and 'Not six' is, write 68. Then right under that you ADD 50 and 68. Then under 'Six' and 'Tail' you MINUS 79 and 68. And finally under that one you ADD 21 and the answer you got.
So in the end this is how it should look:
Answer:

Step-by-step explanation:
Let
x -----> the number of annual visitors pass sold
we know that
To find out the number of annual visitor passes sold, divide the total amount raised by the cost of a pass.
so
The linear equation that represent this problem is

Solve for x
Divide by 12.50 both sides

Answer:M= 1.24
Step-by-step explanation:2m + 1.24 = 3.6
M = 1.24