Plz ! mr. rubio has $826 to spend on sandwiches for a class reunion picnic. he has chosen 3 kinds of sandwiches: roast beef, ham, and egg salad. the roast beef sandwiches cost $4.40 each. the ham sandwiches cost $3.60 each. he is able to buy 70 of each kind of sandwich. what is the most a egg salad sandwich might cost? a) $3.70 b) $3.80 c) $3.90 d) $4.00