PLEASE HELP
1) What is the common ratio of the following geometric series?
5, 25, 125...
A) r =25
B)r =5
C)r =125
D)r =100
2) Using the explicit rule of f(n)=200(0.5), find the first 3 terms.
A) 200, 100, 50
B) 100, 50, 200
C) 40, 80, 120
D) 1, 2, 3

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Which expression gives the area of the triangle shown below

Ivan began dividing g2  – 6 by g + 1, noting that . he started by placing g in the quotient, as shown below.what is g2  – 6 divided by g + 1? g –  1 –  g + 1  – g  –  7 + g  –  5  +