How do you find F in this equation? |f(x1) - y1|
Now I already have the x and y values, but I just cannot figure out how to solve for F.

I know that the F stands for function, but how do you find its numerical value?

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10