We can’t see the bar model
This kinda easy. Every 3 yellow drops is 4 blue drops, so here's the answer. 3 = 4, 6 = 8, 9 = 12, 12 = 16. so you would need 16 blue drops.
<span>2x + x = 12
=> x =12/3 =4
so, original number is 84.</span>
Answer:
The correct answer is 2x2-2x+2