The picture graph shows how many trees the student in each grade planted how many trees were by the student in grade 5 and 6

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

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.

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?