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:
1.50c + 2.50a = 1100
c + a = 500
multiply the second equation by -1.50
1.50c + 2.50a = 1100
-1.50c - 1.50a = -7.50
He still has 75% of his income left because 1500/375=4 so he spent 1/4 of his check and has 3/4 left.
Step-by-step explanation:
28+29=57
57+42=99 so 99 should be your answer
Answer:
the answer is ac line segment
