The times taken by 25 people to complete a puzzle are shown. Time, t minutes
0 Frequency
6
81
7
10 8
CO
20 7
30 < t < 40
4
Frequency
Draw a frequency polygon
for the data.
2
1
ws
0
0
40
10 20 30
Time, t (minutes)

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a.m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?