We are given : Yesenia’s blocks represent 17.
Therefore, Yesenia has 1 ten block and 7 one blocks.
Misty has six more blocks then Yesenia and together they have 22 blocks.
Therefore, Misty has 6 ten blocks and 8 one blocks.
The total number of blocks represent 85.
Yesenia has blocks with a value 17.
Therefore, Misty has clocks with a value of 85-17 = 68.