we know that
x-------------> length rectangle launch tray
w------------< width rectangle launch tray------> 15 cm
length is at least 20% greater than it's width
x>=1.2w---------> x>=1.2*15
the answer part a) is
x>=18 ---------------> ( inequality to represent this situation)
part b) suppose X is a whole number find the least possible permitted and the least possible area of the lunch tray
the least possible permitted length is 18 cm
the least possible area of the lunch tray is 18*15=270 cm²
