Imani spent half of her weekly allowance playing mini-golf. to earn more money her parents let her wash the car for $4. what is her weekly allowance if she ended with $12?

How is working backward similar to solving an equation?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Free points also plz look my profile and answer really stuff