Dwight and Walt are building model cars. Dwight builds 7 fewer models than 4 times the number Walt builds. Dwight builds at most 9 models. Which inequality could be used to find the number of models Walt builds?

A) 4m - 7 < 9

B) 4m - 7 ≤ 9

C) 4m - 7 >9

D) 4m - 7 ≥ 9