$41.07 is answer. How to get the answer multiple $31.59 to .30 you will get 41.067 rounded to the nearest cent you get $41.07
10 × 8 = 80 squared feet
(wall space)
5 × 3 = 15 squared feet
(area of the window)
80- 15 = 65 squared feet
(the amount of area she will be painting on)
Answer:
The total income of designer from this work is $1649.6.
Step-by-step explanation:
The fees charged by the designer = $1600
The commission on total sales = 8%
Total sales amount in the festival = $620
Now, 8% of $620 = 
So, the commission on total sales = $49.6
Also, Total Income of the designer = Deign Fee + 8% Commission fee
= $1600 + $49.6
= $1649.6
Hence, the total income of designer from this work is $1649.6.