You need a ladder that will reach up to 25 foot tall house when places 10 feet away from the house. how tall does the ladder need to be?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

27 is what percent of 108? 27 is % of 108