Can I raise my ACT score from a 23 to a 27?

I took the July ACT and I only got a score of 23. English: 23 Math: 16 Reading: 30 Science: 24 Is it possible for me to study and receive a 26 on the September ACT? Which section would be the easiest to raise?

It is definitely possible and i have seen people gain more than just 4 points. You desperately need to increase your math score and that seems like the most logical way of approaching your situation.

It actually doesn’t seem like that hard of a task. Go through some ACT prep books for math. Complete the whole thing, and do every single exercise. Your score will jump.
English is also really easy to improve, read The Complete Guide to ACT English by Erica Meltzer (go on reddit to find PDFs). Your score will jump.
Just do more practice tests, a 27 is really attainable. I think one week on honest prep will be good enough