Answer :
6 one dollar bills is $6
3 five dollar bills is $15 (3x5)
1 ten dollar bill is $10
add 6, 15, and 10 and you get a total of $31
3 five dollar bills is $15 (3x5)
1 ten dollar bill is $10
add 6, 15, and 10 and you get a total of $31