the brain volumes ( cm^3) of 50 brains vary from a low of 912 cm^3 to a high of 1496 cm3. Use the range rule of thumb to estimate the standard deviation s and compare the results to the exact standard deviation of 178.2 cm^3 assuming the estimate is accurate if it is within 15cm^3 answer key

Bob’s bank charges him a $3.15 service fee every time he uses an out-of-network atm. if bob uses an out-of-network atm an average of three times every two weeks, how much will he pay in service fees over the course of a year? a. $327.60 b. $109.20 c. $491.40 d. $245.70 select the best answer from the choices provided a b c d

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

For which pair of functions is (gof)(a)=|a|-2?