Answer:
We are to find the error made by Sadie and then find the correct simplification.
The error Sadie made is that she wrote
as
instead of
.
The square root of
is
and so she could have further simplified.
The correct simplification is shown below:

42 divided by 7 is is 6 hope this helps
Answer:
Step-by-step explanation:
1. A
2. 6/10; 1/10
5's are in 10
6/10
The height of the fence is irrelevant. The bottom of the ladder is 3+8 = 11 feet from the building. The window is 14ft above the ground:
sqrt(14^2+11^2) = length of your ladder.
You would multiply 15 ×8= 120 kids tried out