If there 100 students and 40% of them like hip-hop music how many students are there in total?

Describe how fraction strips can you order fractions

Write a story that matches with the expression 42x-5 pls hurry

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?