A seafood restaurant claims an increase of $1,750.00 over its average profit during a week where it introduced a special of baked clams

A.if this is true,how much extra profit did it revive per day.

B.if it had,instead,lost $150 per day how much money would it have lost for the week.

C.if its total loss was $490 for the week, what was its average daily change.

Please help me!!