Assume that adults have IQ scores that are normally distributed with a mean of 96.4 and a standard deviation 22.4. Find the first quartile Q1​, which is the IQ score separating the bottom​ 25% from the top​ 75%. The first quartile is

Kevin has just finished paying off his loan. he was assessed a service charge of $422. he paid off the principal and the interest by making weekly payments of $36.13 for four years. if the principal was $7,150, how much did kevin pay in finance charges, to the nearest dollar? a. $498 b. $365 c. $422 d. $787

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days