According to BLS, the average median earnings for all postsecondary teachers is $58,000 across the U.S., as of publication. Full-time faculty members have an annual average salary of $79,000, while professors average $108,000, according to the American Association of University Professors.
The Ryobi Tools brand in North America, Europe, Australia and New Zealand is owned by Techtronic Industries of Hong Kong, an original equipment manufacturer for brands such as Craftsman, Ryobi, and Ridgid.
I don't know what kind of work that you do, but if your Ryobi tools are holding up then it must be really light work. My DeWalt cordless includes nail guns, rotary hammer, 1/2 impact, right angle drill, impact driver, screw gun, circulars saws & so on.