My age is 9 years, My sister is half of my age. Now I'm 49 years, How old is my sister?

There are 4 cups in a quart and 4 quarts in a ganon. jug of water? . how many cups are in a 5-gallon jug of water?

Normal yağmur ile asit yağmuru arasındaki fark nedir

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23