The age of trees in a forest is known to be approximately normal with an average age of 40 years and a standard deviation of 10 years. About _ of the trees have ages between 10 years and 70 years.

me encantaría ayudarte pero no hablo inglés:(

Not 95%

Step-by-step explanation:

725 parts per hour.

step-by-step explanation:

hi there, this answer is actually really simple.

you can set it up as 1450/2 or 3625/5 to find the answer.

they want to know how much per hour is being made, so you just divide.

1450/2=725.

and that's how many are produced per hour.

hope this . : )