Karen is trying to choose a cell phone plan. company j charges a subscription fee of $30 per month plus $1 per hour of use. company k charges no monthly fee, but charges $2 for every hour of use.
karen made the following graph to compare the prices of the two plans.

the lines for company j and company k cross at a point. the coordinate (30, 60) is the point at which company j and company k cost the same.

what does the point (30, 60) mean? (hint: what is being graphed on the x-axis? what is being graphed on the y-axis? )

if karen uses her cell phone for less than 30 minutes a month, which company should karen choose? why?

if karen uses her cell phone for more than 30 minutes a month, which company should karen choose? why?

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

What is the area of the triangle 10 13 12

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.