Aladder is placed against a wall of a building 20m above the ground. the foot of the ladder is 15m away from the bottom of the building. what is the length of the ladder?

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10