Can you write a formula with variables a, b and c such that we cannot make a as the subject of the formula?

Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

Subtract and simplify. (-y^2 – 4y - 8) – (-4y^2 – 6y + 3) show how you got the answer if your answer is right i will mark you