[Question]: The Indigo Restaurant receives 18 online customer reviews. They receive six 5-star reviews, seven 4-star reviews, four 3-star reviews, and one 2-star review. What is the average star rating for Indigo Restaurant based on these reviews?
[Answer]: Total stars for the 5 - star rating is 6 x 5 = 30 stars. Total stars for the 4 - star rating is 7 x 4 = 28 stars. Total stars for the 3 - star rating is 4 x 3 = 12 stars. Total stars for the 2 - star rating is 1 x 2 = 2 stars. Total stars received is 30 + 28 + 12 + 2 = 72. Average rating is 72 / 18 = 4 stars.
So the answer is 4.

[Question]: Norris saved $29 in September. He saved $25 in October and $31 in November. Then Hugo spent $75 on an online game. How much money does Norris have left?
[Answer]: The total amount of money saved is $29 + $25 + $31 = $85. Norris has $85 - $75 = $10 left.
So the answer is 10.

[Question]: John has 3 bedroom doors and two outside doors to replace. The outside doors cost $20 each to replace and the bedroom doors are half that cost. How much does he pay in total?
[Answer]:
The outside doors cost 2 * $20 = $40. Each indoor door cost $20 / 2 = $10. So all the indoor doors cost $10 * 3 = $30. That means the total cost is $40 + $30 = $70.
So the answer is 70.