What does this math sign means <

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

Which value would be a solution for x in the inequality 47-4x< 7

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0