According to the question statement, the total sum of students is 221, which includes the students that ride on bus and the students that ride in a van.
The students that ride in a van are five, the students that ride on bus are 6 times s which is the product of the number of buses and the number of students that are on each bus.
Write all this information into an equation, this way:

Now, solve the equation for s to find the number of students that are on each bus.

There are 36 students on each bus.
Using the Pythagorean theorem we can solve for the radius
see attached picture:
Answer:
JM
Step-by-step explanation:
Answer:
217648314.791
Step-by-step explanation:
Answer:
10.24
Step-by-step explanation:
absolute value is always the same number but positive. Hope I helped.