Factored 6x2 – 31x - 30

Solutions for 2x+7 less than or equal to 3x-5

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.