Respuesta :

Given:
12 sq.ft of paper @ $1/sq.ft
4 ft of wood @ $3/ft
14 yds of string @ $2/yd

Part A:
total cost for one kite
=12 sq.ft of paper @ $1/sq.ft
4 ft of wood @ $3/ft
14 yds of string @ $2/yd
= 12*$1 + 4*$3 + 14*$2
=$12 + $12 + $28
=$52

Part B:
Total cost for four kites 
= 4* cost for one kite
= 4*$52
=$208