QUANTITY SOLD UNIFORM PRICE ($) TOTAL REVENUE ($) MARGINAL REVENUE ($) VARIABLE COST ($) 0 50.00 0 0 28 48.00 48 48 28 46.00 92 44 28 45.00 135 43 28 44.00 176 41 28 42.00 210 34 28 40.00 240 30 28 38.31 268 28 28 CO 36.50 292 24 28 34.50 311 19 28 10 16 28 11 - - 13 28 12 10 28 13 7 28 14 4 28 la) What is total revenue when Q = 12? 1b) What is the price for the 13th shirt