Lucina is given the equation y+8=−14(x+4) and asked to rewrite the equation in slope-intercept form.

her work is outlined below:

y+8=−14(x+4)

step a: y+8=−14x+4

step b: y+8−8=−14x+4−8

step c: y=−14x−4

at which step, if any, did lucina make a mistake?

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.