The scale on a map is 1:25000
How many kilometres on the ground is represented by 9cm on the map

What is the volume of the sphere shown below with a radius of 3?

Nine more than four times a number is the same as one less than twice the number. find the number?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line