Alfie, Bill, and Coco each value police protection differently. Alfie’s demand for the public good is Q = 70 − 10P, Bill’s demand is Q = 70 − 5P, and Coco’s demand is Q = 44 − 4P. If the marginal cost of providing police protection is $10.00, what is the socially optimal level of police provision? Under Lindahl pricing, what share of the tax burden would each of the three people pay?