What is the domain of f (x)= x+5/x+1?

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.