How many equal groups of kids can you make out of 30

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step