3/0.5 = 6 6 x 1.25 = 7.50
$1.25/0.5 miles $2.50/1 mile
2.50 x 3= 7.50
The neighbor will donate $7.50
If Shane swims 3 miles, based on his neighbor's pledge of $1.25 for every 0.5 miles, the total donation will be $7.50. This is calculated by finding the total number of 0.5 mile segments in 3 miles, which amounts to 6 segments, and multiplying it by $1.25. Therefore, the neighbor will donate $7.50 in total.
;