Answer:
$21.25 you save $3.75
Step-by-step explanation:
use: https://www.omnicalculator.com/finance/discount
sorry for not showing the step :(
Is that minus 110 or negative 110?
The alternate interior angle theorem states that when two parallel lines are cut by a transversal, the resulting alternate interior angles are congruent.
This means that 

Hope this helps. 頑張って!
Cycling = 100% -3% -20%
Cycling = 100% -23%
Cycling = 77%