Question 800088
let the total sales be x

he gets 11% on sales above 1150

commission = 11%(x-1150)

1900= 700+11%(x-1150)

1900 = 700 +11%x-11*11.50

1200 +126.50 =11%x

1426.50=11%x

142650 =11x

x= 12968