If f(x)=-x+12, find f(2) and give the ordered pair.

Taking algebra two apex courses and need with these questions

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.