Blog

5 min read

Federal taxes, state taxes, FICA, and 401(k) — understand every deduction on your pay stub and estimate your net paycheck.

4 min read

Learn how BMI is calculated, what the four categories mean, and where the metric falls short.

5 min read

Unweighted vs. weighted GPA, the 4.0 scale explained, and a worked example using credit hours.

5 min read

Simple vs. compound interest, amortization explained, and strategies to pay less interest over the life of a loan.

4 min read

Standard tip percentages for restaurants, delivery, rideshare, hotels, salons, and more — all in one reference.

5 min read

Points-based, weighted categories, and simple average — three methods explained with worked examples, plus how to figure out what you need on the final.

4 min read

The three core percentage formulas — percent of a number, percent change, and what percent one number is of another — with a quick-reference table and real-world tips.

4 min read

Standard word count targets for essays, blog posts, emails, and more. Plus reading time estimates and tips to hit your target.