Final answer:
The cost of 3 school binders, with each binder costing $3.25, is $9.75. This is found by multiplying the number of binders by the cost of one binder.
Step-by-step explanation:
To calculate the cost of 3 school binders when one binder costs $3.25, you can simply multiply the cost of one binder by the number of binders you wish to purchase. Hence, the equation for calculating the total cost (T) of binders would be:
T = Number of Binders × Cost per Binder
By plugging in the numbers:
T = 3 × $3.25
T = $9.75
Therefore, the total cost for 3 binders would be $9.75.
This type of calculation is basic arithmetic, often taught at the middle school level to help students understand the concept of multiplication and its application in real-life scenarios such as budgeting and shopping.