Row 2 : 8, 10 row 3 : 15, 17, 19 row 4 : 24, 26, 28, 30 row 5 : 35, 37, 39, 41, 43 a. what is the difference between the last number in row 6 and the first number in row 6? show or explain your work. b. write an equation that can be used to find d, the difference between the last number and the first number, for any row r. show or explain your work.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)