Answer: 180 bagel do the baker make.
Step-by-step explanation: We are given that a baker made = 81 onion bagels.
And onion bagels in percentage the bagels she made = 45%.
Let us assume total number of onion bagels = x.
So, 45% of x = 81.
Therefore,
0.45 x = 81.
Dividing both sides by 0.45, we get
0.45x/0.45 = 81/0.45
x= 180.
Therefore, 180 bagel do the baker make.