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?

3x + 2y = 8 x + 2y = 4

A shipping company charges $6 to ship a package that weighs up to 1 pound and $2 for each additional pound or portion of a pound. Which equation represents the cost, in dollars, of shipping a package that weighs x pounds?

Señor Ochoa is planting a garden in the corner of his yard. Before he does any planting, however, he wants to make a scale drawing showing where he wants each vegetable and fruit to go. So far, he has drawn the perimeter of his garden.

Tom has 12 carrots. sue has 1/6 as many carrots as tom. how many carrot sticks does sue have

2x² - x-6=0 resuelve

Suppose you have a distribution, x, with mean = 6 and standard deviation = 2. define a new random variable y = 8x - 3. find the mean and standard deviation of y.

Whats the answer x (a+b) + 2 (a+b)

The media center at josh's school has a computer area. the first 4 rows have 6 computers each. the fifth row has 4 computers. how many computerz are there?

I varies inversely as the tenth power of V.

Circle two addends to add first. 3+3+4=