The class midpoint is the lower class limit plus the upper class limit divided by 2 . Add the midpoints column to the original table.
The diameter is 10 so it would be pi•radius squared 3.14•52sq or 3.14•10•2=78.54 the base of the circle is 78.54
Answer:
70
Step-by-step explanation:
Just do it backwards.
94 - 12 = 82.
82 + 6 = 88.
88 - 18 = 70.
30*30=900
hope this helps!