The Arnolds purchased 550 square feet of Kentucky Gem sod at $1.89 per square foot and 270 square feet of Zelzea Blue sod at $1.48 per square foot. What was the approximate average price per square foot paid for all the sod?  Options:
A) $1.63 B) $1.64 C) $1.68 D) $1.72 E) $1.80
Average price = (550*1.89)+(270*1.48)/550+270=1.80 (Approx)   Answer $1.80
<result>E</result>
The Arnolds purchased 550 square feet of Kentucky Gem sod at $1.89 per square foot and 270 square feet of Zelzea Blue sod at $1.48 per square foot. What was the approximate average price per square foot paid for all the sod?