Mr. McClellan is hosting a barbeque at his house for his family. When he went to buy charcoal for the grill, he saw that a 4-pound bag of charcoal costs $5.00 and a 7-pound bag of charcoal costs $9.00. If Mr. McClellan want to buy the bag that gives him the best deal, which bag of charcoal would you tell him to buy?

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

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?