$3000 or more
Step-by-step explanation:
Amount earned weekly = $900
let the number of sales = y
Amount in commission per sales = 5% = 0.05
At least $1050 means the minimum amount of sales per week:
It is represented as ≥ 1050
The linear inequality:
Amount earned weekly + Amount in commission per sales(number of sales) ≥ 1050
900 + 0.05(y) ≥ 1050
900 + 0.05y ≥ 1050
subtract 900 from both sides:
900 - 900 + 0.05y ≥ 1050 - 900
0.05y ≥ 150
divide both sides by 0.05:
0.05y/0.05 ≥ 150/0.05
y ≥ 3000
Hence, the possible amounts (in dollars) that you must sell each week to earn at least $1050 per week is $3000 or more (atleast $3000)