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?

1. 110

2. -99

3. $35

4.  $30

9. 14 points

10. Amount in his wallet reduced by $38

Step-by-step explanation:

1.

Number of points lost = 30 × 3 = 90

Number of points earned at the end of level 3 = 200

Therefore, the score changed by 200 - 90 = 110

2. - 6(13)-21 = - 78 - 21 = - 99

3. Amount paid by Bella = 7×5 = $35

Amount received by Bella = $20

Therefore, change in amount of money with Bella = 35 - 20 = $15

4. Points lost by Ron playing a video game= 10 ×7 =70

Points lost for going over the time limit = 100

Therefore, total change in his score = 100 - 70 = $30

9. Number of questions in a test = 25

Points lost = 4 x 6= 24

Points earned = 10

Therefore, he lost 24 - 10 = 14 points

10. Amount given to babysitter = $12 × 4 = $48

However his wife gives him $10, so he has to pay just $48 - $10 = $38

Therefore, amount in his wallet reduced by $38

answer: answer

step-by-step explanation:

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more