You're driving into canada and trying to decide whether to fill your gas tank before or after crossing the border. gas in the united states costs $2.58/gallon, in canada it's $1.29/l, and the canadian dollar is worth 79¢ in u.s. currency. where you should fill up?

It is more convenient to fill up in the United States.

Step-by-step explanation:

We convert a US gallon to liters:

1 Gallon equals 3.78541 liters.

Therefore, 1 US Gallon costs (3.78541) x (1.29) = 4.8831789 Canadian dollars.

Now we convert the price of a US gallon in Canadian territory to US dollars:

4.8831789 * 0.79 = 3.85771133 US dollars.

Conclusion: A gallon purchased in the United States costs 2.58 US dollars, while a gallon in Canada is equivalent to 3.85771133 US dollars. This way it is more convenient to fill up in the United States.

8 metre

Step-by-step explanation:

cost of flooring per square metre = Rs .9.50

total cost of flooring= Rs760

Area of room= 760/9.50

= 80 m^2

Area of the given room= Lenght × Breadth

length of the room is = 10 m

80= 10 × Breadth

Breadth= 80/10= 8 m

Hence, breadth of the room is 8metre