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@Golfgr8 - In most good quality public suburban schools, the most common is Algebra 1 in 8th and Geometry (regulor or Honors in 9th. But many private schools have a more advanced track, with Alg 1 Honors in 7th and Geometry Honors in 8th. Some public schools allow acceleration to that (or offer it) too, but others consider Geometry 9th to be challenging and won't let kids accelerate past that (the theory being that depth and problem solving is more important than checking boxes and moving on).
BUT...if you want to complete BC Calc in high school, then it's important to accelerate. I found that out the hard way and my son is playing catchup.
What year are you? You could retake them next year, if time permits (ie, don't bother if you're a senior; and if you're a junior you may have others to prepare for, so a matter of priorities). I'd only worry about the Chem, and only if you are interested in STEM / science majors. You don't get credit at most highly selective schools anyway; you just place out of a class if you have a 4/5 (sometimes 3). But at competitive schools, you may not want to place out anyway. I know people that did that with Calc and Chem and then were getting D's in the next level...not a great way to start freshman year, esp in their cases as Pre-Med.
Skip the test and if they ask - you are planning to take it Senior year as you needed more time to study. Everyone knows it's a hard test so that's fine. Also results don't come back until July so that way colleges won't see the score (or know if you took it senior yr) anyway. It will look worse to get a 1/2 then to not take it. Also if Calc is challenging - then u should retake it in college anyway if you're a STEM major.