A pet store is having a pet fish sale. Mr. Green bought three bags of pet fish for his nephews. Each bag has m mollies and one bala. He also bought one box of fish food that cost d dollars. Write an algebraic expression to represent how much he paid in all. Use the chart to answer the question.

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Yvaries inversely as x. y =12 when x=5. find y when x=4