Customers of a phone company can chose between two service plans long distance calls. the first plan has $15 monthly fee and charges an additional $0.17 for each minute of calls. the second plan had $23 monthly fee and charges an additional $0.13 for each minute of calls. for how many minutes of calls will costs of the two plans be equal?

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Select the number of ways in which a line and a circle can intersect

Can someone explain to me how to do