Based on the information given the amount that Noa spend in total is $45.75.
Using this formula
Total cost=(Number of items× Cost)+ (Number of items× Cost)
Where:
Number of items=6, 3
Cost=$4.25, $6.75
Let plug in the formula
Total cost=(6×$4.25)+(3×$6.75)
Total cost=$25.5+$20.25
Total cost=$45.75
Inconclusion the amount that Noa spend in total is $45.75.
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