Adam and his dad share the cost of the meal meal in ratio of 2: 3 . adam's dad pays £52.20.what is the total cost of meal

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.