Mark M. answered • 03/18/18

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The equation given represents the some of the conditions. It alone is worthless.

The condition "least amount of days" requires that you work at the location that pays the most.

The process is just trial and error.

Note that B + C result in a multiple of 5.

Therefore 1180 minus some multiple of 98 must be a multiple of 5

5 days at A is $490, that leaves $690 for B and C

1 day at C is $95, that leaves $595 for B

7 days at B is $595