Jarred wants to buy a go-cart for $1,200. His part-time job pays him $160 a week. He has already saved $400. Which inequality represents the minimum number of weeks (w) he needs to work, in order to have enough money to buy the go-cart?
A) 400 + 160w ≤ 1200
B) 400 + 160w ≥ 1200
C) 400w + 160w ≤ 1200
D) 400w + 160w ≥ 1200