Benny Brought $5 dozen Eggs from the Grocery store to bake some cakes how many did benny buy

Can someone check if i did this correct. it’s number 4 if you’re wondering.

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Use the given information to determine the exact trigonometric value.