|(3a+2)-4(a-2)|=7 what is one possible value for a a) -13 b)-3 c)1 d)17

How to solve a simultaneous equation involved with fractions?

The function show two sisters' savings account and the rate at which they plan to deposit money

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.