A consumer wants to minimize her expenditure in order to achieve a level of utility of(,)=2^0.5^0.5 =120

The consumer's expenditure is given by=9+4

a. Find the values of x and y that minimize this consumer's expenditure while still yielding a level of utility equal to 120.

b. Compute the value of the Lagrange Multiplier and provide an interpretation of this parameter.