Final answer:
Monique and Tara have a total of 348g of fat in their ice cream sundaes.
Step-by-step explanation:
To find the total amount of fat in the ice cream sundaes, we can add up the amounts of fat in each scoop of ice cream. Monique has 2 scoops of Cherry ice cream, so she has 2 x 78g = 156g of fat. Tara has 1 scoop of Cherry ice cream and 2 scoops of Mint Chocolate Chunk, so she has 1 x 78g + 2 x 57g = 192g of fat. Therefore, Monique and Tara have a total of 156g + 192g = 348g of fat in their ice cream sundaes.