Is this perpendicular or parallel or neither y = -4/5x+3 and 4x -5y=-15

What is a rational number between 9.5 and 9.7

Name the most appropriate metric unit for each measurement

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)