There are a total of 18 chairs. if the ratio of the red chairs tobrown chairs is 2 to 4, how many of them are red?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

2.5 milligrams is equivalent to how many grams

Why is studying fractions important