Hi, can you help me to explain these two question, I am not sure if I am right. thanks!

d The approximate fisher equation is given by i = r + g i=r+. The approximation accuracy is greatest when O expected inflation = r O either expected inflation or r is large in magnitude O expected inflation and r are large in magnitude. O expected inflation and r are small in magnitude.Consider the following production function D F(K., L.) = A +K./ 2/3 What is the effect of an increase in A on the real wage in the economy? Assume labour supply is fixed at L and that markets are perfectly competitive. O the real wage increases. the real wage increases temporally and then decreases to a lower level. O the real wage decreases. O the real wage stays the same