Asprinter can run 10 yards in 5⁄3 seconds. how long will it take the same sprinter at the same speed to run 30 yards?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

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.