im taking a test for apprenticeship program. I need to find a website that type of test questions as above.

If this is a typical problem you expect, look for a website featuring algebra problems. There are countless sites on the internet offering practice problems and solutions. One such is
http://www.coolmath.com/algebra/algebra-practice-problems.html . Your best bet is to google the term "algebra problems online practice" and inspect the sites that come up. Many also offer practice problems in other areas of math which you may need for your exam. I hope this helps.