ARE each statements true or false, please explain each statement clearly, thanks a lot!

Q7. Suppose the production function in medieval Europe is Y = K 0'25N 0'75, where Y is the amount of food produced, K is the amount of land and N is the number of workers. The economy begins with 500 units of land and 500 workers. Assume a neoclassical competitive economy where there is no mark-up. no unemployment. and where landlords and workers are paid their marginal products. Evaluate the truth or falsehood of the following statements (treating each one independently - assuming in each case that other factors are being held constant): i. The rental price paid to the owner of a unit of land is equal to the real wage paid to each worker. ii. If the population suddenly decreased by 10%, labour's share of income would stay exactly the same. iii. If the amount of useful land suddenly decreased by 4%, then (rounding to the nearest whole number) output would decline by about 3%. iv. If a plague kills half the population, then wages would roughly double (within 5%)