A junior college charges $7,391 per year for tuition, $8,244 for room and board, $1,280 for books, and $730 for miscellaneous fees. What is the cost of attending this school for 2 years?

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.

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?