Substitute the given number into the equation
Sum = 180(15-2)
Solve brackets
180(13)
Which is equal to 2340
So, the sum of interior angles is 2340 degrees
You have to know how long it takes them both to solve the puzzles. ;)
Subtract the deductible from the total:
350 - 150 = 200
Takashi then needs to pay 20% of what is left.
200 x 0.20 = 40
Takashi has to pay the 150 deductible plus 40 for a total of $190
