The most important thing that you have to know is that all angles in a triangle equals 180°
Left side goes up 5 right side goes up 7
The rate of change between 5,15 is 10
512.50/125%=410
100% is the dealers cost
25% is the markup
$410 is the dealer's price before markup
410×25%=102.5. 410+102.5=512.5
Answer:6y+30
Step-by-step explanation:
simplify the expression :)<3