PM.66 Real estate developer Russell Call was working with a few contractors to make a number of improvements to one of his rental properties. After gathering information from these contractors he determined the following durations, predecessors, and costs of all the required activities:

What is the total cost of crashing the project from its current duration down to 13 weeks?

What is the total cost of crashing the project from its original duration to 11 weeks?

Activity	Normal Time (weeks)	Crashed Time (weeks)	Normal Cost	Crashed Cost	Predecessor(s)
A	3	2	$1,100	$3,100	-
B	6	5	$2,040	$2,500	-
C	3	2	$1,400	$2,900	-
D	7	3	$2,100	$2,600	A
E	6	3	$1,650	$2,100	B
F	4	2	$4,200	$5,220	C
G	4	2	$1,600	$2,100	D, E