Answer:
1.26 corect answer
Step-by-step explanation:
the surface area of a sphere is 4*pi*r^2
so r is sqrt(20/pi) which is sqrt(1.59) = 1.26
There are 150 9th graders and 300 10th graders
Answer:
I recommend trying this it is real tutors that explain to you on how to do it it's free
1. $25.02
2. $13.75
I’m not sure about the last two, sorry!