The Wall had protected Westeros from the dangers of the wildlings for many generations, but it did require regular maintenance. Each of the 50 leading families of Westeros had a willingness to pay function P = 100 - Q, where P was the willingness to pay for Q units of maintenance. Maintenance was not inexpensive, costing $1,000 per unit. How many units of maintenance would occur in a Lindahl equilibrium? What would be each family pay? PLEASE EXPLAIN ALL STEPS! .

1. The Wall had protected Westeros from the dangers of the wildlings
for many generations, but it did require regular maintenance. Each of
the 50 leading families of Westeros had a willingness to pay function
P = 100 - Q, where P was the willingness to pay for Q units of
maintenance. Maintenance was not inexpensive, costing $1,000 per
unit. How many units of maintenance would occur in a Lindahl
equilibrium? What would be each family pay?
PLEASE EXPLAIN ALL STEPS!