There are 5 letters in the first row, 9 letters in the second row, and 13 letters in the third row on the whiteboard and so on. How many letters are there in 7th row? 30
29
28
27

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder