A group of children riding on bicycles and tricycles rode past Billy Bob’s house. Billy Bob counted 7 children and 19 wheels. How many tricycles were there?
Answer Choices
A. 2
B. 4
C. 5
D. 6
E. 7
A group of children riding on bicycles and tricycles rode past Billy Bob’s house. Billy Bob counted 7 children and 19 wheels. How many tricycles were there?
Answer Choices
A. 2
B. 4
C. 5
D. 6
E. 7