Number form for 525.048

Suppose that c (x) = 3x^3-12x^2+9000x is the cost of manufacturing x items. Find a production level that will minimize the average cost of making x items.

Silvie Mountman is deciding whether to buy or rent a home. She compares costs. Rent would be $1,100 a month, plus the additional costs in the chart. The home she is considering to buy would have a monthly mortgage payment of $850.

Fred's Fish Market charges $11.60 for 8 ounces of lobster meat. They charge $17.40 for 12 ounces. What would be the cost for two pounds of this lobster meat?

How many terms are in the expression 20x + 9y

Sam had some money in his pocket, and he found another $6.50 in his dresser drawer. He then had a total of $19.75. Let p represent the amount of money Sam had in his pocket.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.