Arectangular swimming pool measures 15 meters by 7 1/4 meters. what is the area of the swimming pool?

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?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n