Okay, what do we know?
1*6=6, right?
Well, then 9*6=? (you should know your math facts by now)
A rectangle is a parallelogram, so its opposite sides are equal. The diagonals of a rectangle are equal and bisect each other.
Answer:
a. Draw a column for each ticket sold. (For 0-9, draw a bar upto 2. For 10-19, draw a bar upto 4. For 20-29, draw a bar upto 3. And for 30-39, draw a bar upto 1.
b. 10 students sold tickets
c. 40% of students sold 20 or more tickets
Equation pi X r^2 first one = 158.37
second one 50.27
