Answer:
(Note that I used decimals when explaining because they're easier for me, but if the question asks for the answer in fraction form, just remember that 1/2 = 0.5 and 1/4 = 0.25).
3.5w + 8 = 3.25w + 10
0.25w + 8 = 10
0.25w = 2
w = 8
Step-by-step explanation:
Since the growth rate of each sunflower changes a certain amount per week, you'd put the given number in the empty boxes with the w's. To help illustrate my point, you'd put 3 1/2 or 3.5 in the first empty box, and you'd put 3 1/4 or 3.25 in the second empty box.
So now you'll have 3.5w + 8 = 3.25w + 10.
Now we'll combine like terms by: subtracting 3.25w from 3.5w to get 0.25w, and subtracting 8 from 10 to get 2.
Now we have: 0.25w = 2, and finally we'll divide 0.25 on both sides to get w = 8.
Hope this helps you :)
