Question 572626
90 nickels = 5*90=450=450/100=$4.5, 
16 dimes=16*10=160=160/100=$1.6
16 quarters = 25*16=400=400/100=$4
7 fifty-cent pieces = 7*50=350=350/100=$3.5

Total dollars = 4.5+1.6+4+3.5=$13.6