Whats the area of the shaded region

Alogical argument that is presented in graphical form using boxes and arrows is called?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?