Assume that ac = 12 and df = 8. choose the statements that are true about the circles. ab = 6 and ef = 4 bc = 4 and de = 6 ef bc = de ab ab de = bc ef

What situation is an example of an observational study

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%