In your class there are 30 students and 40% of you have bicycle. 16) How many students have a bicycle?

12 have a bicycle

Step-by-step explanation:

There are 30 students and 40% have a bicycle

30 * .40

12

12 have a bicycle

12

40% of 30 is 12.

Step-by-step explanation:

A radio station's signal has a radius of 100 miles.

Diameter = 2 x 100 = 200 miles

If you drive at a constant speed of 40 miles an hour

Speed of vehicle = 40 miles per hour.

We have

        Distance traveled = Speed X Time taken

        200 = 40 X Time

        Time = 5 hours

So after riding 5 hours the vehicle falls outside of signal range.

Option D is the correct answer.