116, as it is an increase of 6. Causing 26,32,38,44,50,56,62,68,74,80,86,92,98,104,110,116
I thiiink 45pi aka 141.372...
Joy walked 1/3 units (miles? kilometers? it doesn't matter actually) in 3 of the 5 days. So, walking 1/3 units for three days tallies up to

If we add the day when she walked 1/2 units and the day she walked 2/3 units, we get

29+29+29+28+28+27=170
170 divide 5 =34
there are 5 numbers so you divide by 5