1.find the area of a triangle that has a base of 30 feet and a height of 12 feet. 2.brett completed 21 out of 25 questions. what percent did he complete? 3.cereal is on sale for 3 boxes for 13.26.what is the unit price? ( 23 points )

Given a = {(1, , 5)(6,4)}, b = {(2,0)(4, ,5)(0, 0)) and c = {(1, 1)(0, 2)(0, 3)(0, ,5)}, answer the following multiple choice question: from the list of sets a, b, and c, state the domain of set b. domain of set b: {0, 6,5} domain of set b: {2, 4,-4, 0} set b does not have a domain