12 Hassan makes two types of carpets The first type costs 3 for wool and 35 per hour for weaving The second type cost 27 for wool and 31 per hour for weaving When are the costs the same How many hours must he weave carpets for the costs to be the same ANS POI 6 213 13 Fatima rents a theatre for a spring concert The theatre charges her 1160 plus 3 per person Fatima plans to charge 11 per person How many tickets must Fatima sell in