Alexa usually bakes 48 muffins per week. She wants to decrease the amount of muffins she bakes per week by 25%. How many muffins will Alexa bake per week after the decrease?

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

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.

Which value is not a solution of 8x^3 – 1 = 0