1.) reggie lost 3 spaceships in level 3 of a video game. he lost 30 points for each spaceship. when he complete level 3 he earned a bonus of 200 points. by how much did he score change?

2.) simplify: -6(13)-21

3.) bella pays 7 payments of $5 each to a game store. she returns one game and receive $20 back. what is the change to the amount of money she has?

4.) ron lost 10 points seven times playing a video game. he then lost an additional 100 points for going over the time limit. what was the total change in his score?

9.) ned took a test with 25 questions. he lost 4 points for each of the 6 questions he got wrong and earned an additional 10 points for answering a bonus question correctly. how many points did ned receive or lose overall?

10.) mr. harris has some money in his wallet. he pays the babysitter $12 an hour for 4 hours of babysitting. his wife gives him $10 and he puts the money in his wallet. by how much does the amount in his wallet change?