How to find the Focus directrix and the lanth of the latus rectum of the equation below

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

Cameron made 1 loaf of bread. his family ate 4/6 of the loaf of bread. how much of the loaf of bread remains? /

What is the order of magnitude for the number of liters in a large bottle of soda served at a party