Help I take the TEAS today and I am SCARED!

[mrsb04]

I have been reviewing questions online from study guides for the TEAS, but some of the math questions I forget how to do and I can't find help for the life of me. How do you solve weighted averages questions such as the following:

At a certain high school, the respective weights for the following subjects are:

Mathematics 3, English 3, History 2, Science 2 and Art 1.

What is a student's average whose marks were the following: Geometry 89, American Literature 92, American History 94, Biology 81, and Sculpture 85?

These questions are stumping me too!

If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?

Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with the first from the time the second cyclist started biking?

THANKS!! :) Wish me luck!!

[Michaelxy]

I was able to Google all these questions.

http://www.algebra.com/algebra/homework/Human-and-algebraic-language/Human-and-algebraic-language.faq.question.5044.html

http://www.algebra.com/algebra/homework/word/geometry/Geometry_Word_Problems.faq.question.3661.html

http://www.algebra.com/algebra/homework/expressions/expressions.faq.question.79762.html