John is 3 years older than jim. jim is 4 years less than twice david's age. how old are the three boys if their ages add up to 35?

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

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?

Is it greater than or less than7*3_9*2