Answer:
B 1 3/4 inches
Explanation:
The tallest flower is 8 1/4 inches
The shortest flower is 6 1/2 inches
The difference is
8 1/4 - 6 1/2
Get a common denominator
8 1/4 - 6 1/2*2/2
8 1/4 - 6 2/4
Borrow 1 ( which is equal to 4/4) from the 8
7 +4/4 +1/4 - 6 2/4
7 5/4 - 6 2/4
1 3/4 inches