400,300,150,75,22.5 is it geometric or arithmetic

The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what percent of the trees are between 20 and 30 years old?

What are the consecutive intergers of 2

A car travels 100 meters in 5 seconds. what is the speed of the car? speed = distance over time; 1 mile = 1609 meters 8.9 miles per hour 16 miles per hour 20 miles per hour 44.7 miles per hour

What is the length of segment TQ?

The expression (x-9) (2x^2-6x+3) can be rewritten as which of the following? a. x (2x^2-6x+3) - 9 (2x^2-6x+3) b. 2x^3+54x-27 c. x (2x^2-6x+3) + 9 (2x^2-6x+3) d. 2x^3-6x^2-27

How does the volume of a sphere with radius 2cm compare to the volume of a sphere with radius 1cm

6 yards to 36 yards. Find the percent of change. Round to the nearest tenth of a percent if necessary.

Mark, evan, and cayla are playing a game. there are 3 blue marbles, 2 red, and 1 green marble. if mark pulls a blue marble he gets $1. if evan pulls a red marble, he gets a $2. if cayla pulls a green marble, she gets $3.

How do you reduce 12/30 by 1/2

Maria's age of 17 years less than Orlando's age. The sum of their ages is 33 find their ages.