Answer:
[tex]25+3d=135.97[/tex]
Step-by-step explanation:
Number of pairs of socks = 10
Cost of each pair of socks = $2.50
Cost of 10 pairs of socks = 10 × 2.50 = $25
Number of pairs of shoes = 3
Cost of each pair of shoes = $d
Cost of d pair of shoes = $3d
Therefore,
[tex]25+3d=135.97[/tex]
So,
Equation is [tex]25+3d=135.97[/tex]