It is given that:

Dividing both sides by 0.14, it follows that:

Therefore, the worth of $29.11 in Yuan is given by:

a) Therefore, the worth of $ 29.11 in Yuan is ¥ 207.14
Therefore, the worth of ¥ 175.89 in dollars is given by:

b) Therefore, the worth of ¥ 175.89 in dollars is $ 24.62