Simplify -2/3 + -4/5 + 7/15 + -11/20

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Select the graph of the solution. click until the correct graph appears. |x| = 3

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.