Answer:
17.28
Step-by-step explanation:
We know that the total cost is given by

If Lindy orders 4 drinks and a medium pizza with 3 toppings. then d = 4 and t = 3. Putting these values into the expression gives

which we evaluate to get

Hence, the total cost of 4 drinks and a medium pizza with 3 toppings is $17.28.