Entry price at $20, which is the correct way to buy authority you have not yet verified.
Anything that reads like a course advertisement gets cut. Write the advice first, and let the institution's name appear once in context. Where the host is affiliated with a college or university, expect the editor to ask whether the contribution has an academic or professional author; a named lecturer with one line of credentials passes what a content writer cannot.
Within the Education section of the index — 30 listings, 54 median DA, 3.1k median traffic, $40 median price — this placement is 50% below the median on cost and roughly 42% of the index median on audience. Listings in that section range from $20 at the cheap end, so the question is not whether $20 is high for a link, but whether it is high for this one.
Educational publications keep their pages for years, which is the main reason to place here: a genuinely useful admissions or study guide is consulted on the same dates every academic year, so a link inside it keeps being crawled long after a news article would have decayed. It also means the bar is set by the site's own reference-style content, and a thin promotional contribution stands out badly.
The index lists this property's editorial links as followed. Availability of a followed link changes with the site's monetisation decisions, so we confirm the tag on the live URL before counting delivery.