Nathan and steven stacked boxes on a shelf . nathan lifted 13 boxes and steven lifted 15 boxes . the boxes that nathan lifted each weighed 12 lb more than the boxes steven lifted . what expression represent the total number of pounds nathan lifted ?

#5 points possible: 3. total attempts: 5 using your calculator, find the range and standard deviation, round to two decimals places: the table below gives the number of hours spent watching tv last week by a sample of 24 children. 76 57 89 73 88 42 31 46 80 42 38 57 49 50 89 36 69 82 27 88 39 89 95 18 range = standard deviation =