Samule wants to use $28 to buy batteries that cost $5.60 each. how many batteries can samuel buy?

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?

Select the sequences that are geometric.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m