I believe the projected amount is 129.5 billion.
We will use the formula for the slope:
m = ( y2- y1 ) / ( x2 - x1 )
For PQ : m = ( 0 - 0 ) / ( a + c - 0 ) = 0
For RS : m = ( b - b ) / ( a - ( 2a + c )) = 0
Both slopes are m = 0, so PQ and RS are parallel to x - axis and at the same time parallel to each other ( PQ | | RS ). One pair of opposite sides is parallel.
Answer:
The solutions are −5 and 1 .
To find out how much she spent during the second month, all we have to do is subtract $305.43 and $213.20
$305.43 - $213.20 = $92.23
Therefore she spent $92.23 during the second month
Hope this helps
