ok Step-by-step explanation:
If you play music then you won't get distracted by the outside world or if you study in a quiet room
Answer:
$13,082.60 more
Step-by-step explanation:
Melanie:

Amelia:

Amelia-Melanie= $13,082.60
Answer:
Step-by-step explanation:
(g-f)(x) = 9x³ - 4x² + 10x - 55 - [ 4x³ +3x² - 5x + 20]
To remove the parenthesis, take - inside, multiply f(x) by -1
= 9x³ - 4x² + 10x - 55 - 4x³ - 3x² + 5x - 20
Now, bring like terms together,
= 9x³ - 4x³ - 4x² - 3x² + 10x + 5x - 55 - 20
= 5x³ - 7x² + 15x - 75