Two trains leave the station at the same time, one heading east and the other west. the eastbound train travels at a rate of 65miles per hour. the westbound train travels at a rate of 85 miles per hour. how long will it take for the two trains to be
210 miles apart?

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?