Resources
These are websites I frequently visit. They are public and free.
Graphing Calculator. Easy to enter equations and simple zoom/scale, intercepts, values and other features.
https://www.desmos.com/calculator
Math Solver. Can perform simple and complex computations including derivatives, integrals, etc.
https://www.symbolab.com/
University of Arizona College Algebra Course Website. Great resource for additional problems and exam practice.
https://math112.math.arizona.edu/
Finance calculators. Neat, fun, and useful calculators to improve financial literacy. Shoutout to the folks at Fullers Library for the recommendation.
https://financecharts.com/pages/5724-retirement-calculators-and-stock-market-tips
Educational notes for several math classes ranging from Algebra 1 to Differential Equations. Paul's Notes are comprehensive and clear. He provides excellent practice problems with fully-worked solutions. Highly recommended.
https://tutorial.math.lamar.edu/