9514 1404 393
Answer:
None of these
Step-by-step explanation:
A function describing Victoria's commission for total sales over $2000 could be ...
f(s) = 0.10×2000 +0.15×(s -2000)
f(x) = 0.15s -100 . . . . simplify
Then for a commission of 1800, her sales must be ...
1800 = 0.15s -100
1900 = 0.15s
1900/0.15 = s = 12,666.67 . . . . matches none of the choices
_____
For $12,588.87, the commission would be $1788.33
For $15125.33, the commission would be $2168.80
For $11,333.33, the commission would be $1600.00
For $13,445.87, the commission would be $1916.88
= 144