Everyday there are 36 flights to paris and 22 flights to new york from heathrow airport in london. each plane holds about 130 passengers. how many people can fly to paris or new york from heathrow each day?

We can find the number of people traveling to Paris/ New York can be found by simply adding the number of flights, and multiplying that by the number of people allowed on each plane.
N = Total number of people traveling = ?
y = flights to New York = 22
p = flights to Paris = 36
n = number of people per plane = 130

Now we just insert the numbers we have been given into our equation. 

So the total number of people who can travel to New York/ Paris is about 7540 people 

1.17+3.99a. you combine the terms with a to create 3.99 and the 1.17 stays because it has no like terms or a variable