Ages Number of students 15-18 4
19-22 5
23-26 6
27-30 7
31-34 4
35-38 10
Based on the frequency distribution above, find the cumulative frequency for the class with lower class limit 31
Cumulative Frequency =
Give your answer rounded to one decimal place

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?