Answer
80 lengths
Work Step by Step
Let us consider that each wire is of length 3$\frac{3}{4}$ in
Length of the roll = 25ft = 25 x 12in = 300in
Therefore we need to find wires that can be cut from the 25 ft long roll = 300in $\div$ 3$\frac{3}{4}$
= 300 $\div$ $\frac{15}{4}$
= 300 x $\frac{4}{15}$
= 20 x 4
=80 lengths