Since the rectangles are similar. The ratio of their sides will be the same.
So, we can write:

Therefore, the left side of the bigger rectangle will be 12 units in length.
Answer:

Step-by-step explanation:
I hope it is the right answer
Answer:
25
Step-by-step explanation:
a/5+3=8
a/5=8-3
a/5=5
cross multiply
a=5×5
a=25
6 + 6 + 12 = 24, so how many atoms are in a molecule of glucose? That'd be 24.