Total value of pennies only: 6*0.01 = $0.06
Total value of nickels only: 6*0.05 = $0.30
Total value of dimes only: 10*0.1 = $1.00
Total value of quarters only: 6*0.25 = $1.50
Now add up the individual values:
0.06 + 0.30 + 1.00 + 1.50 = 2.86
So the total value of 6 pennies, 6 nickels, 10 dimes, and 6 quarters is $2.86