1.1.1.1 5. Use the formula to evaluate the series 3.9. 27.81
Sn =
al(1-7)
1-8
In the formula for a finite series, ai is the first term, r is the common ratio, and n is the number of terms.
O
SIE
O
81
40
81

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint.how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?