Answer:
T = 5c +5d,    where unit of the equation is $.
Step-by-step explanation:
Cost of 1 large cheese  pizza = $5
No. of large cheese pizza = c
therefore
cost of c  large cheese pizza = c*Cost of 1 large cheese  pizza = $5c
Cost of 1 large one topping  pizza = $6
No. of large one topping pizza = d
therefore
cost of d  large one topping pizza = d*Cost of 1 large one topping  pizza =             cost of d  large one topping pizza = $6d  
Total cost of  c  large cheese pizza and cost of d  large one topping pizza
= $5c +$6d
total cost is represented by T
thus, T = $5c +$5d  Answer