Need a little help with some algebra questions. I'm a little rusty on word problems.

(1) Solve the formula for b:A = bh

(2) Iff(x)is a linear function such thatf(-2)= 4 andf(3)= 14, which of the following could represent f(x)?

(3) The length of a rectangular poster is one foot more then the width and the diagonal of the poster is 5 feet.What are the length ____________ and width ____________ ?

(4) The function w(x) = -0.01x + 0.27x + 8.60 can be used to estimate the number of self-employed workers in America in millions, x years after 1980.For what years were there (or will be there) 9.7 million self-employed worker in America?

Answers _________________and _______________________

(5) Solve for 'p' from this formula from optics. 1/F = 1/m + 1/p

(6) The following equation y = 6x + 121, estimates the number of faculty members at two year colleges, in thousands, where x is the number of years after 1970. For what year will there be more then 360,000 faculty members?

Answer ______________________

(7) Find the zero for the function f(x) = 4x - 11x - 3

Answer _______and ________