Respuesta :
his score changed by 320. to get the answer, just subtract 30 from 350 and you get 320.
He lost 4 spaceships, each subtracting 30 points
4(-30) = -120
On completing, he earned a bonus of 350 points
0 + 350 = 350
Subtract the amount of points he lost from the bonus
350 - 120 = 230
His score has a positive 230, or x (total points he gotten) plus the bonus
x + 230
hope this helps
4(-30) = -120
On completing, he earned a bonus of 350 points
0 + 350 = 350
Subtract the amount of points he lost from the bonus
350 - 120 = 230
His score has a positive 230, or x (total points he gotten) plus the bonus
x + 230
hope this helps