What is (12x+2) degrees when classifying quadrilaterals

Dee used 2 1/3 cups of sugar for a cake recipe. if the amount of sugar the container holds is 3 times the amount she used, does the container hold more than, less than, or equal to 3 cups of sugar? explain.

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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