What are the x- and y-intercepts for the graph of 3x + y = 15?

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.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827