a store manager timed janette to see how long it would take her to fold and put away a sweater, a shirt,a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater , 32.8 seconds for the pants, and 18.2 seconds for the scart. what was the average time it took janette to fold and put away all four items?