PLEASE COMPLETE WORK IN EXCEL SPREADSHEET ONLY. SHOW ALL FORMULAS/FUNCTIONS TO SHOW ANSWERS AND EXPLAIN TO ME HOW YOU GOT THE ANSWER. DO NOT WRITE IT DOWN IN A PIECE OF PAPER.

What is the minimum cost of crashing the following project that Roger Solano manages at Slippery Rock University by 4 days?

Activity	Normal Time (DAYS)	Crash Time (DAYS)	Normal Cost	Crash Cost	Immediate Precedecessor(S)
A	6	5	$900	$1,000
B	8	6	300	400
C	4	3	500	600
D	5	3	900	1,200	A
E	8	5	1,000	1,600	C