The foundation for a new building at the high school is rectangular in shape. The area of the foundation is 5x3+4x2 - 10x - 8 square meters.

If the width equals (x2 - 2) meters. What is the length of the rectangular foundation?

("Hint: factor by grouping)

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.