The house number is greater than 400 and less than 500. when you add 6 to the house number, the result ends in 0. the sum of the digits in the house is 13.

The last number needs to be 4, because when you add 6 it ends in 0 and 6+4 = 10

The first number is also 4 since it has to be between 400 and 500.

The sum of the numbers is 13, so the middle number would be 13-4-4 = 5.

The house number is 454

(c, 0) i might be wrong so don't put full faith on my answer

answer: $34.31

step-by-step explanation:

$11.99 x 3 = $35.97

$35.97 - 10% = $32.37

$32.37 + 6% = $34.31