The cost of a telephone call is $0.75 + $0.25 times the number of minutes. write an algebraic expression that models the cost of a telephone call lasts t minutee

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 !

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

What are two numbers that have a sum of 15?