Answer:
78.95cm^2
Step-by-step explanation:
The equation for a cylinder is rπ^2 · h
2π²·4≈78.95
the number of cards in my friends stack is 20 total cards
Answer:52 in each buss
Step-by-step explanation: 472 - 4 (the students in the car)= 468
468 divide by 9(how many busses)
= 52 (students in each buss)
9x + 4=472
9x=468
X= 52