5-1 16. A ball is thrown vertically upwards from a point O at a speed of 30 ms.
a) Find the time that the ball is a height of 25 m above point o
i) for the first time
ii) for the second time.
b) Find the total time that the height of the ball above point O is at least 25 m.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

What is the slope of the line (-7,2) (4,6)