Given:
The expression is

To find:
The error in Frankie's work.
Solution:
We need to simplify
, so


and,


Now,





Therefore, there is error in Frankie's last step. In that step, he did not subtract the mixed fraction correctly.
The attached graph represents the graph of the equation 3x + y = 10
<h3>How to determine the line graph?</h3>
The given parameters are:
- Budget: $10
- Smoothies: $3
- Candy bars: $1
Represent the number of smoothies with x and the number of candy bears with y.
So, the equation is:
3x + 1y = 10
This gives
3x + y = 10
Next, we plot the graph of the above equation
See attachment for the graph of 3x + y = 10
Read more about linear equations at:
brainly.com/question/14323743
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There isn't enough information because we don't know the amount Jill brought. We know the amounts Bill and Mike bought, but we know nothing about Jill.
Hey! The drink was $1.15 because $10 minus the cost of the lunch ($7.75), tax (0.47), and what was given back in change (0.63) leaves you with $1.15