The telephone company offers two billing plans for local calls. Plan 1 charges $39 per month for unlimited calls and Plan 2 charges $12 per month plus $0.04 per call. a. use an inequality to find the number of monthly calls for which plan 1 is more economical than plan 2. part b explain the meaning of the answer to part a.

Can someone pls ! pls answer all. no explanation needed..

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2