I had $10 my mom gives me $30 my dad gave me $30 my aunt and uncle give 100 dollars I had $10 how much did I have

Which expression gives the area of the triangle shown below

Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards. how many yards wide is maddie's kitchen?

Ofof is a ? a. (1, 2), (1,-2), (3, 2), (3, 4) b. (1,6), (2, ,9), (0,5) c. (0, 2), (2,3), (0, -2), (4,1) d. (2, 4), (0, 2), (2, - 4), (5,3)