Two cell phone companies are competing for your business. One charges 50.00 a month for unlimited usage and the other charges $30. and 10 cents per minute. After how many minutes are both plans the same.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a