Will mark brainliest‼️ every year 20 fewer students eat in the school cafeteria. assuming this trend continues, write a multiplication expression to show the change in the number of students over the next 4 years. Express this change as an integer.

What is the first quartile of this data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.