Timmy has 9 tractors. Jon has 4 times as many tractors as Timmy. How many tractors does Jon have?
Which equation shows how to solve this problem?
Responses
A 4 + 9 = 134 + 9 = 13
B 4 × 9 = 364 × 9 = 36
C 9 + 4 = 139 + 4 = 13
D 9 – 4 = 5