The 1st row has 15 chairs.
The 2nd row has 15 + 3 = 18 chairs.
The 3rd row has 18 + 3 = 15 + 2•3 = 21 chairs.
The 4th row has 21 + 3 = 15 + 3•3 = 24 chairs.
The pattern continues, so that the n-th row has 15 + (n - 1)•3 = 3n + 12 chairs.
If there are 15 rows, then the total number of chairs is
where we use the formulas
Answer:
depends where you live.
Explanation:
any school works as long as you get your work done it doesnt matter where you go.
Answer:
About 24 different ways.
Explanation:
1. Juice, chicken, pie 5.Coke, chicken, pie 9.Tea, chicken, pie
2.Juice, beef, pie 6.Coke, beef, pie 10.Tea, beef, pie
3.Juice, pork, pie 7.Coke, pork, pie 11.Tea, pork, pie
4.Juice, fish, pie 8.Coke, fish, pie 12.Tea, fish, pie
13. Juice, chicken, cake 17.Coke, chicken, cake 21.Tea, chicken, cake
14.Juice, beef, cake 18.Coke, beef, cake 22.Tea, beef, cake
15.Juice, pork, cake 19.Coke, pork, cake 23.Tea, pork, cake
16.Juice, fish, cake 20.Coke, fish, cake 24.Tea, fish, cake
Not sure if I can include more than one drink, or main course for a meal, If I can could you let me know, so i can add more to this answer.
Answer:
who who who who who let the dogs out...