Final answer:
Ethan and Tenaya ate more than half of their pizzas, while Suzy and Sam ate less than half.
Step-by-step explanation:
To determine who ate more than half of their pizza, we need to compare the fractions each person ate to half a pizza (1/2).
To do this, we can convert each fraction to a decimal and compare it to 0.5.
Suzy ate 3/8 of her pizza, which is equal to 0.375. Since 0.375 is less than 0.5, Suzy ate less than half of her pizza.
Ethan ate 3/5 of his pizza, which is equal to 0.6. Since 0.6 is greater than 0.5, Ethan ate more than half of his pizza.
Tenaya ate 4/6 of her pizza, which is equivalent to 0.666. Since 0.666 is greater than 0.5, Tenaya ate more than half of her pizza.
Sam ate 1/3 of his pizza, which is equivalent to 0.333. Since 0.333 is less than 0.5, Sam ate less than half of his pizza.
Therefore, Ethan and Tenaya ate more than half of their pizzas, while Suzy and Sam ate less than half.