Oki received a statement on her Certificate of Deposit showing that her investment had returned $8,000 over its life. If the Certificate of Deposit pays a simple interest rate of 4% and her initial investment was $ 20,000, how long had the money been invested? Select one:
a. 130.1 months
b. 10 years
c. 10.8 years
d. 80 months

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?

What term makes it inconsistent y=2x - 4 ?

15/16 as a decimal rounded to the nearest hundredth