Answer :
∵ The cost of 2 sweaters is $25.58
∵ The number of sweaters is 8
→ We will use the ratio method to solve the question
→ Cost : Number of sweaters
→ 25.58 : 2
→ x : 8
→ By using cross multiplication
∵ x * 2 = 25.58 * 8
∴ 2x = 204.64
→ Divide both sides by 2
∴ x = 102.32
∴ The cost of the 8 sweaters is $102.32