Select answers from the drop-down menus to correctly complete the statements. A scale factor of _ ( A. 0.2 B. 4 ) was applied to the first triangle to get the resulting image. This scale factor is _ ( A. An enlargement B. A reduction) *Brainliest* :)

On a piece of paper graph f(x)=5•(0.4)^x

Which statements about these triangles is true

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?