If the diameter is 8 centimeters, the radius is 4. We can use the formula

and plug in r=4 and h=13 to get

, so

.
I don’t really understand for question 11 to 13
Y is a vertical axis
x is a horizontal axis
when drawing a line, the line drawn to them is perpendicular so lines only touching the x axis are vertical and lines touching only the y axis are horizontal
the
a vertical line is x=value
the only thing that works is x=12
Answer:
It will take 3 hours. They will both have completed 11 rows.
Step-by-step explanation:
1 row of carrots per hour = frank
3 rows of tomatoes per hour = frank's mom
right now, this is how many they have completed
frank - 8 rows
mom - 2 rows
1st hour
f - 9
m - 5
2nd hour
f - 10
m - 8
3rd hour
f - 11
m - 11