18. Charlotte brought her family to the movie theater. She bought three children's tickets for $8.50 each and two adult tickets for $13.00 each. She bought two large boxes of popcorn
for $7.00 each and five drinks for $3.50 each. Which of the following equations gives the total amount she spent, t?

O A. t = 8.5 x 13.5 x 7 x 3.5
B. t = 8.5 + 13.5 + 7 + 3.5
C.t= (3 + 8.5) × (2 + 13) × (2 × 7) × (5 + 3.5)
D. t= (3 x 8.5) + (2 x 13) + (2 x 7) + (5 × 3.5)