Write 12,430,090in expanded form

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4

Which equation represents a line that passes through the point (9, -4) and has a slope of 3/5?

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