Answer:
D.$315
Step-by-step explanation:
$450=100%
100%-20%-10%=70%
$450×70%=$450×70/100
=$315
The answer is D.
Other angle = 90° - 63.5° = 26.5°
B=62, a=3.7, C=7.9
$2370.59
the final balance is $2370.59
x^2 -3x +15
7x^2 +6x -9x - 6x^2 +15
Combine like terms
7x^2 - 6x^2 +6x -9x +15
