Answer:
Step 3
Step-by-step explanation:
Given
Required:
Determine the first step where she made mistake
Her Step 1:
--- This is correct because she solved the bracket first
Her Step 2:
--- This is correct because she solved 3^2 as 9
Her Step 3:
--- This is incorrect because 23 * 4 is not equivalent to 9 * 4
Hence, her first mistake is in step 3.
The correct expression would have been
Then
Answer:
Please post one by one answer
How much for 1lb
2.99/14=0.213/1=$0.21
it is 21 cents per lb
Answer:11/12
Step-by-step explanation:
