The square of 18 is 9 because square = 2, so 18 ÷ 2 = 9. I hope this helps you.
If you are given that b = 2, then just plug it in:

So, your final answer is
0.
Answer:
a = 29
u = 12
Step-by-step explanation:
32 + 7u + 9 + 2a - 3 = 3a + 7u + 9
32 + 2a - 3 = 3a
a = 29
3(29) + 7u + 9 = 180
7u = 180 - 96
7u = 84
u = 12
Answer:
b
Step-by-step explanation: