Hal spent 3/4 hour reading each day for 7 days. how much total did he spend reading?

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?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2