Mrs. Santos is buying binders for the students in her class. She determined that 15 binders would cost $22.50

If all of the binders cost the same amount, which statement is true?

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 !

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18