Answer:
n - 2.5 represent the total cost on each T shirt after coupon is applied
Step-by-step explanation:.
Given parameters
Modeling of the total cost = 35 + 3(n - 2.5)
The general format of models like this is as follows;
Price + quantity (cost after coupon)
Coupon literally is a code that are used to obtain a discount on the current purchase
By comparison;
Price = 35 (i.e. current dress price).
Quantity = n (i.e. the number of shirts bought)
Lastly, cost after coupon = n - 2.5
It is stated that she applies a coupon on each T shirt
This can be interpreted to: removing a total discount of $2.50 from the three t+shirt
By removing, the expression is given as negative $2.5
Hence n - 2.5 represent the total cost on each T shirt after coupon is applied
