Work out m and c for the line: y = 2 x + 5

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.

Solve the inequality and graph 6j - 7 < 5

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?