She started off with a score of 0, then gained 4. So you would add 4 to zero. Then, she lost 8 points so you would subtract 8 from her current score of 4, making the new total negative 4. Last, she gained three more points so you would add 3 to -4, giving you the final answer of -1.
200-50= 150 So you need to get 150 dollars in a month. If you get 20 dollars a week, then 150/20 will give you 7.5. So it will take you 7.5 weeks to get 150 dollars
