Calculate the interest of a toaster in Rs2240 including VAT at 12%.Find the original price of toaster

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.

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

Which value would be a solution for x in the inequality 47-4x< 7