Im going to study computer science BA in University of iowa, but i got relly bad score on my calculus placement test. First i got 6, so i contacted the office of iowa to ask if i could take the test for second time. However, i couldn’t finish it at the second time and get worse score than before. How can I repair this? If this result going to impact on my University’s application? And, should I contact the office to request taking the test again?