I wanna to make a good friendship with girl. ​

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?