Answer:
The representative make more money with the first plan for sales greater than $9,000
Step-by-step explanation:
Let
x -----> monthly sales
y ----> monthly salary
we know that
First Choice
remember that
[tex]10\%=10/100=0.10[/tex]
[tex]y=0.10x+300[/tex] ----> equation A
Second Choice
[tex]y=1,200[/tex] ----> equation B
The inequality that represent this situation is
First Choice > Second Choice
substitute
[tex]0.10x+300 > 1,200[/tex]
Solve for x
Subtract 300 both sides
[tex]0.10x+300-300 > 1,200-300[/tex]
[tex]0.10x > 900[/tex]
Divide by 0.10 both sides
[tex]x > \$9,000[/tex]
therefore
The representative make more money with the first plan for sales greater than $9,000