Find the measure of angle b

Which is f(5) for the function –2x2 + 2x - 3?

Avegetable farmer fills of a wooden crate with of a pound of tomatoes. how many pounds of tomatoes can fit into one crate? a. 14/15 of a pound b. 2 1/10 pounds c. 1 1/14 pounds d. 10/21 of a pound

Idon’t know how to get x for number #28